000 00305nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a528.3
_bELM
100 _aELMAGHRABY, Salah E
245 0 _aActivity networks: Project planning and control by network models
260 _bJohn Wiley
_c1977
942 _cBK
999 _c30624
_d30624