000 00245nam a2200109Ia 4500
008 200701s1998 xx 000 0 eng d
100 _aVALKENBURG VAN
245 0 _aNETWORK ANALYSIS
260 _bS CHAND
_c1998
300 _a571
942 _2ddc
_cGE
_01
999 _c783
_d783