@conference {Zenker_EBT_2003, title = {New electron beam technologies for surface treatment}, booktitle = {Proceedings of the 7th International Conference on Electron Beam Technologies}, year = {2003}, pages = {202{\textendash}209}, publisher = {Bulgarian Academy of Sciencies}, organization = {Bulgarian Academy of Sciencies}, address = {Varna}, author = {R. Zenker and A. Buchwalder and H. J. Spies}, editor = {Georgy Mladenov} }