00624nam a22001817a 4500 BD-DhUL 20141127120747.0 141127s1963 a|||| |||| 001 0 eng d BD-DhUL BD-DhUL 539.7211 WIP Symposium on Electron and Vacuum Physics. Proceedings of the symposium on electron and vacuum physics, Hungary 1962 / by Symposium on Electron and Vacuum Physics. Budapest : Hungarian Academy of Sciences. c1963. 506 p. : ill. ; 23 cm. Includes Index. Elektronenröhre. ddc BK 20892 20892 0 0 ddc 0 539_721100000000000_WIP 0 NFIC 40081 DUSL DUSL GEN 1966-10-13 purchased 539.7211 WIP A44856 2014-11-27 2014-11-27 BK