000 00310nam a2200121Ia 4500
999 _c16933
_d16933
008 190711s9999 xx 000 0 und d
082 _a621.3896 Z821
100 _aZhigarev,A.
245 0 _aElectron Optics and Electron Beam Devices
260 _aMOSCOW
_bMIR Publishers
_c1975
300 _a22X15
942 _cBK