000 00267nam a2200121Ia 4500
008 211209s9999 xx 000 0 und d
020 _a9.78126E+12
041 _aeng
082 _a621.31 NAI
100 _aNAIDU
245 _aHIGH VOLTAGE ENGINEERING
260 _bTMH
999 _c78125
_d78125