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2005


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Spatially resolved ferromagnetic resonance: Imaging of ferromagnetic eigenmodes

Puzic, A., Van Waeyenberge, B., Chou, K. W., Fischer, P., Stoll, H., Schütz, G., Tyliszczak, T., Rott, K., Brückl, H., Reiss, G., Neudecker, I., Haug, T., Buess, M., Back, C. H.

{Journal of Applied Physics}, 97, 2005 (article)

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DOI [BibTex]

2005


DOI [BibTex]


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Proton magnetic resonance spectra of YH3 and LuH3

Brady, S. K., Conradi, M. S., Majer, G., Barnes, R. G.

{Physical Review B}, 72, 2005 (article)

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[BibTex]

[BibTex]


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Hydrogen storage in spherical nanoporous carbons

Terres, E., Panella, B., Hayashi, T., Kim, Y. A., Endo, M., Dominguez, J. M., Hirscher, M., Terrones, H., Terrones, H.

{Chemical Physics Letters}, 403(4-6):363-366, 2005 (article)

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[BibTex]

[BibTex]


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Faceting and migration of twin grain boundaries in zinc

Straumal, B. B., Rabkin, E., Sursaeva, V. G., Goruakova, A. S.

{Zeitschrift f\"ur Metallkunde}, 96(2):161-166, 2005 (article)

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[BibTex]

[BibTex]


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Nanostructures with high surface area for hydrogen storage

Hirscher, M., Panella, B.

{Journal of Alloys and Compounds}, 404, pages: 399-401, 2005 (article)

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[BibTex]

[BibTex]


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Timescale settling and nature of electron transport in magnetite - General considerations in view of new magnetic after-effect results on dilutely Ti4+-doped Fe3O4

Walz, F., Brabers, V. A. M., Brabers, J. H. V. J., Kronmüller, H.

{Journal of Physics: Condensed Matter}, 17(42):6763-6781, 2005 (article)

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[BibTex]

[BibTex]


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Topological k-space refinement of the configurational energy of alloys

Shchyglo, O., Bugaev, V. N., Drautz, R., Udyansky, A., Reichert, H., Dosch, H.

{Physical Review B}, 72(14), 2005 (article)

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[BibTex]

[BibTex]


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Large surface area nanostructures for hydrogen storage

Hirscher, M., Panella, B.

{Annales de Chimie}, 30(5):519-529, 2005 (article)

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[BibTex]

[BibTex]


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Electronic and magnetic properties of ligand-free FePt nanoparticles

Boyen, H., Fauth, K., Stahl, B., Ziemann, P., Kästle, G., Weigl, F., Banhart, F., He\ssler, M., Schütz, G., Gajbhiye, N. S., Ellrich, J., Hahn, H., Büttner, M., Garnier, M. G., Oelhafen, P.

{Advanced Materials}, 17(5):574-578, 2005 (article)

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DOI [BibTex]

DOI [BibTex]


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Identification of extrinsic Mn contributions in Ga1-xMnxAs by field-dependent magnetic circular X-ray dichroism

Rader, O., Fauth, K., Gould, C., Rüster, C., Schott, G. M., Schmidt, G., Brunner, K., Molenkamp, L. W., Schütz, G., Kronast, F., Dürr, H. A., Eberhardt, W., Gudat, W.

{Journal of Electron Spectroscopy and Related Phenomena}, 144(Sp. issue):789-792, 2005 (article)

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DOI [BibTex]

DOI [BibTex]


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Fundamentals of interface phenomena in advanced bulk nanoscale materials

Baretzky, B., Baró, M. D., Grabovetskaya, G. P., Gubicza, J., Ivanov, M. B., Kolobov, Y. R., Langdon, T. G., Lendvai, J., Lipnitskii, A. G., Mazilkin, A. A., Nazarov, A. A., Nogués, J., Ovidko, I. A., Protasova, S. G., Raab, G. I., Révész, Á., Skiba, N. V., Sort, J., Starink, M. J., Straumal, B. B., Suriñach, S., Ungár, T., Zhilyaev, A. P.

{Reviews on Advanced Materials Science}, 9(1):45-108, 2005 (article)

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[BibTex]

[BibTex]


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Formation of nanostructure during high-pressure torsion of Al-Zn, Al-Mg and Al-Zn-Mg alloys

Mazilkin, A. A., Kogtenkova, O. A., Straumal, B. B., Ruslan, Z, Valiev, Z., Baretzky, B.

{Defect and Diffusion Forum}, 237-240, pages: 739-744, 2005 (article)

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[BibTex]

[BibTex]


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Micromagnetic simulation as a bridge between magnetic-force and magnetic-transmission X-ray microscopy

Bolte, M., Eiselt, R., Eimüller, T.

{Journal of Magnetism and Magnetic Materials}, 290, pages: 723-726, 2005 (article)

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[BibTex]

[BibTex]


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Grain-boundary melting phase transition in the Cu-Bi system

Divinski, S., Lohmann, M., Herzig, C., Straumal, B., Baretzky, B., Gust, W.

{Physical Review B}, 71, 2005 (article)

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[BibTex]

[BibTex]

2002


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Forward models in visuomotor control

Mehta, B., Schaal, S.

J Neurophysiol, 88(2):942-53, August 2002, clmc (article)

Abstract
In recent years, an increasing number of research projects investigated whether the central nervous system employs internal models in motor control. While inverse models in the control loop can be identified more readily in both motor behavior and the firing of single neurons, providing direct evidence for the existence of forward models is more complicated. In this paper, we will discuss such an identification of forward models in the context of the visuomotor control of an unstable dynamic system, the balancing of a pole on a finger. Pole balancing imposes stringent constraints on the biological controller, as it needs to cope with the large delays of visual information processing while keeping the pole at an unstable equilibrium. We hypothesize various model-based and non-model-based control schemes of how visuomotor control can be accomplished in this task, including Smith Predictors, predictors with Kalman filters, tapped-delay line control, and delay-uncompensated control. Behavioral experiments with human participants allow exclusion of most of the hypothesized control schemes. In the end, our data support the existence of a forward model in the sensory preprocessing loop of control. As an important part of our research, we will provide a discussion of when and how forward models can be identified and also the possible pitfalls in the search for forward models in control.

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link (url) [BibTex]

2002


link (url) [BibTex]


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Chemical processes during solid state reaction of carbon with alkali salts prepared for gravimetric hydrogen storage measurements

Skakalova, V., Quintel, A., Choi, Y. M., Roth, S., Becher, M., Hirscher, M.

{Chemical Physics Letters}, 365(3-4):333-337, 2002 (article)

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[BibTex]

[BibTex]


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Micromagnetic analysis of nucleation-hardened nanocrystalline PrFeB magnets

Kronmüller, H., Goll, D.

{Scripta Materialia}, 47(8):551-556, 2002 (article)

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[BibTex]

[BibTex]


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The Verwey transition in magnetite as studied by means of definite impurity doping

Walz, F., Brabers, J. H. V. J., Brabers, V. A. M.

{Zeitschrift f\"ur Metallkunde}, 93(10):1095-1102, 2002 (article)

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[BibTex]

[BibTex]


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Antiparallel ruthenium coupling in doped La1.2Sr1.8Mn2-xRuxO7

Weigand, F., Gold, S., Schmid, A., Geissler, J., Goering, E., Dorr, K., Krabbes, G., Ruck, K.

{Applied Physics Letters}, 81(11):2035-2037, 2002 (article)

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[BibTex]

[BibTex]


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Micromagnetic theory of the pinning of domain walls at phase boundaries

Kronmüller, H., Goll, D.

{Physica B}, 319(1-4):122-126, 2002 (article)

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[BibTex]

[BibTex]


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Diffusion of oxygen in CdSe-photo sensor arrays

Klement, U., Ernst, F., Baretzky, B., Plitzko, J. M.

{Materials Science and Engineering B-Solid State Materials for Advanced Technology}, 94(2-3):123-130, 2002 (article)

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[BibTex]

[BibTex]


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Magnetic imaging with full-field soft X-ray microscopy

Fischer, P., Eimüller, T., Goll, D., Stoll, H., Puzic, A., Schütz, G., Denbeaux, G.

{Zeitschrift f\"ur Metallkunde}, 93(5):377-382, 2002 (article)

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[BibTex]

[BibTex]


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Magneto-optical studies of current distributions in high-Tc superconductors

Jooss, C., Albrecht, J., Kuhn, H., Leonhardt, S., Kronmüller, H.

{Reports on Progress in Physics}, 65(5):651-788, 2002 (article)

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[BibTex]

[BibTex]


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Dominant thermal defects in B2-FeAl

Bester, G., Meyer, B., Fähnle, M., Fu, C. L.

{Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing}, 323(1-2):487-490, 2002 (article)

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[BibTex]

[BibTex]


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Hydrogen desorption kinetics of nanostructured MgH2 composite materials

von Zeppelin, F., Reule, H., Hirscher, M.

{Journal of Alloys and Compounds}, 330, pages: 723-726, 2002 (article)

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[BibTex]

[BibTex]


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Hydrogen in mechanically prepared nanostructured h-BN: a critical comparison with that in nanostructured graphite

Wang, P., Orimo, S., Matsushima, T., Fujii, H., Majer, G.

{Applied Physics Letters}, 80(2):318-320, 2002 (article)

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[BibTex]

[BibTex]


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Enhancement of the critical current density by silver sheeting of YBCO thin films

Kienzle, M., Albrecht, J., Warthmann, R., Kronmüller, H., Leonhardt, S., Joos, C.

{Physical Review B}, 66, 2002 (article)

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[BibTex]

[BibTex]


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Pt magnetization profile in a Pt/Co bilayer studied by resonant magnetic x-ray reflectometry

Geissler, J., Goering, E., Justen, M., Weigand, F., Schütz, G., Langer, J., Schmitz, D., Maletta, H., Mattheis, R.

{Physical Review B}, 65, 2002 (article)

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DOI [BibTex]

DOI [BibTex]


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Imaging magnetic microstructures with soft x-ray microscopies

Fischer, P., Denbeaux, G., Nolting, F., Goll, D., Eimüller, T., Quitmann, C., Schütz, G.

{Transactions of the Magnetics Society of Japan}, 2, pages: 234-237, 2002 (article)

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[BibTex]

[BibTex]


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Positron age-momentum correlation (AMOC) measurements on organic liquids

Castellaz, P., Siegle, A., Stoll, H.

{Journal of Nuclear and Radiochemical Sciences}, 3, pages: R1-R7, 2002 (article)

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[BibTex]

[BibTex]


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Scalable techniques from nonparameteric statistics for real-time robot learning

Schaal, S., Atkeson, C. G., Vijayakumar, S.

Applied Intelligence, 17(1):49-60, 2002, clmc (article)

Abstract
Locally weighted learning (LWL) is a class of techniques from nonparametric statistics that provides useful representations and training algorithms for learning about complex phenomena during autonomous adaptive control of robotic systems. This paper introduces several LWL algorithms that have been tested successfully in real-time learning of complex robot tasks. We discuss two major classes of LWL, memory-based LWL and purely incremental LWL that does not need to remember any data explicitly. In contrast to the traditional belief that LWL methods cannot work well in high-dimensional spaces, we provide new algorithms that have been tested on up to 90 dimensional learning problems. The applicability of our LWL algorithms is demonstrated in various robot learning examples, including the learning of devil-sticking, pole-balancing by a humanoid robot arm, and inverse-dynamics learning for a seven and a 30 degree-of-freedom robot. In all these examples, the application of our statistical neural networks techniques allowed either faster or more accurate acquisition of motor control than classical control engineering.

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link (url) [BibTex]

link (url) [BibTex]


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Theory of crystal field states for heavy rare-earth impurities in MgB2

Welsch, F., Kremer, R., Fähnle, M.

{Journal of Physics-Condensed Matter}, 14(43):10273-10279, 2002 (article)

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[BibTex]

[BibTex]


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Micromagnetism and microstructure - tailoring of high- performance permanent magnets

Goll, D.

{Zeitschrift f\"ur Metallkunde}, 93(10):1009-1018, 2002 (article)

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[BibTex]

[BibTex]


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Interplay between chemical and magnetic roughness of Pt in a Pt/Co bilayer investigated with X-ray resonant magnetic reflectometry

Geissler, J., Goering, E., Weigand, F., Schütz, G.

{Zeitschrift f\"ur Metallkunde}, 93(10):946-952, 2002 (article)

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[BibTex]


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Untersuchungen zur Spindynamik in nanostrukturierten ferromagnetischen Schichtsystemen

Puzic, A.

Universität Stuttgart, Stuttgart, 2002 (mastersthesis)

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[BibTex]

[BibTex]


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Direct correlation of Cr 3d orbital polarization and O K-edge X-ray magnetic circular dichroism of epitaxial CrO2 films

Goering, E., Bayer, A., Gold, S., Schütz, G., Rabe, M., Rüdiger, U., Güntherodt, G.

{Europhysics Letters}, 58(6):906-911, 2002 (article)

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[BibTex]

[BibTex]


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Surface magnetization reversal of sputtered CrO2

Goering, E., Gold, S., Will, J.

{Zeitschrift f\"ur Metallkunde}, 93(5):372-376, 2002 (article)

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[BibTex]

[BibTex]


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Shear-strain-related nonlinear magnetoelastic properties of epitaxial films

Komelj, M., Fähnle, M.

{Physical Review B}, 65(9), 2002 (article)

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[BibTex]

[BibTex]


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NMR studies of hydrogen diffusion in the hydrogen-stabilized Laves phase compound C15-HfTi2Hx

Eberle, U., Majer, G., Skripov, A. V., Kozhanov, V. N.

{Journal of Physics-Condensed Matter}, 14(2):153-164, 2002 (article)

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[BibTex]

[BibTex]


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The existence of more than one jump process of hydrogen in palladium-silver alloys - an NMR study

Züchner, H., Barlag, H., Majer, G.

{Journal of Alloys and Compounds}, 330-332, pages: 448-453, 2002 (article)

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[BibTex]

[BibTex]


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Electric field distribution at low-angle grain boundaries in high-temperature superconductors

Jooss, C., Guth, K., Born, V., Albrecht, J.

{Physical Review B}, 65(1), 2002 (article)

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[BibTex]

[BibTex]


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Finite element calculations on the single-domain limit of a ferromagnetic cube - a solution to \microMAG Standard Problem No. 3

Hertel, R., Kronmüller, H.

{Journal of Magnetism and Magnetic Materials}, 238(2-3):185-199, 2002 (article)

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[BibTex]

[BibTex]


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Diffusion of oxygen in CdSe-photosensor arrays

Klement, U., Ernst, F., Baretzky, B., Plitzko, J. M.

{Materials Science and Engineering B}, 94, pages: 123-130, 2002 (article)

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[BibTex]

[BibTex]


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Influence of the grain boundary phase transitions on the diffusion-related properties

Straumal, B., Baretzky, B.

{Diffusion and Defect Forum}, 216-217, pages: 53-64, 2002 (article)

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[BibTex]

[BibTex]


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Magneto-optical studies of flux pinning in high-temperature superconductors

Jooss, C., Albrecht, J.

{Zeitschrift f\"ur Metallkunde}, 93(10):1065-1070, 2002 (article)

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[BibTex]

[BibTex]


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From the bulk to monatomic wires: An ab initio study of magnetism in Co systems with various dimensionality

Komelj, M., Ederer, C., Davenport, J. W., Fähnle, M.

{Physical Review B}, 66(14), 2002 (article)

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[BibTex]

[BibTex]


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The initial stages of oxidation of γ-TiAl: an X-ray photoelectron study

Schmiedgen, M., Graat, P. C. J., Baretzky, B., Mittemeijer, E. J.

{Thin Solid Films}, 415(1-2):114-122, 2002 (article)

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[BibTex]

[BibTex]


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Morphology and thermal stability of metal contacts on crystalline organic thin films

Dürr, A. C., Schreiber, F., Kelsch, M., Carstanjen, H. D., Dosch, H.

{Advanced Materials}, 14(13-14):961-963, 2002 (article)

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[BibTex]

[BibTex]