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008 230312s9999||||xx |||||||||||||| ||und||
020 _a0-471-04958-1
082 _a620.72
_bGAB-S
100 _aGabel;Robert,A
245 0 _aSignals and linear systems
260 _bJohn wily
_aUSA
_c1980
300 _a491
650 _aEngineering
_vAvionics
942 _cBK
999 _c12439
_d12439