000			003190000a22001330004500
008			140223b1976 xxu||||| |||| 00| 0 eng d
041			_aENG
080			_aD65 L6-;5
082			_aD65 L6-;5
100			_aVan Valkenburg (M E)
245			_aNet Work analysis edn 3
260			_c1976
650			_aElectron Engineering
999			_c155223 _d155223