00409nam a2200181Ia 4500003000400000005001700004008004100021020001800062040000600080041001200086082002200098100002500120245002100145250001200166260002500178300001200203650001200215OSt20250130112322.0231217s9999    xx            000 0 und d  a9788120301566  c0  aEnglish  a621.3192  VAL;103  aValkenburg, Van M E. 0aNetwork analysis  a3rd ed.  c2014bPHIaNew Delhi  axv, 571  aNetwork