000 00328nam a2200133Ia 4500
008 241225s9999 xx 000 0 und d
020 _a951954092X
082 _a621.84
_bNEL
100 _aNeles Jamesbury.
245 0 _aValve book
260 _aFinland :
_bNeles Jamesblay,
_c1994
300 _a304.
650 _aApplied physics
999 _c31366
_d31366