000 00291nam a22001217a 4500
999 _c6083
_d6083
003 OSt
005 20210318160609.0
008 210318b ||||| |||| 00| 0 eng d
100 _aFRENZEL E. LOUIS
245 _aPRINCIPLES OF ELECTRONIC COMMUNICATION SYSTEMS
260 _bTMH
942 _2ddc
_cGE