000 002750000a22001210004500
245 _aElements of system theory
100 _aFaurre, P.
100 _aDepeyrot, M.
260 _aAmsterdam
_bNorth Holland
_c1977
080 _a621-5:681.3
_bF3
041 _aEN
942 _cBK
999 _c111909
_d111909