00347nam a2200145Ia 4500008004100000020001500041041001200056082001600068100002400084245004500108250000800153260002500161300000800186650000700194221030s9999    xx            000 0 und d  a8120301560  aEnglish  a105.23bVAL  aM. E. V. Valkenburg 0aNetwork Analysiscby M. E. V. Valkenburg  a3rd  bPHIaNew Delhic1997  a571  aEE