@article{escidoc:1573231, title = {Diffusion in polymer-derived Si-(B-)C-N ceramics, particularly amorphous Si29B9C41N21}, author = {Voss, T. and Strohm, A. and Frank, W.}, journal = {Zeitschrift f\"ur Metallkunde}, volume = {94}, number = {4}, pages = {419--423}, year = {2003}, doi = {} }