000 00302nam a2200133Ia 4500
008 201007s9999 xx 000 0 und d
100 _aVALKENBURG, M.E. VAN
245 0 _aNETWORK ANALYSIS
250 _a3
260 _bPHI NEW DELHI
_c2003
300 _a571
650 _anetwork analysis
942 _cBB
999 _c5917
_d5917