00401nam a2200133Ia 4500008004100000082001300041100002000054245003300074260003300107300000800140942000700148952009500155999001700250140113s9999    xx            000 0 und d  a311   K5  a"Duckworth, E."  aGuide to operatinal research  a1965bMethuen & CoffcLondon  a153  cBK  00104070aVTLbVTLd2014-01-13l0o311   K5pVBK155r2014-01-13 00:00:00w2014-01-13yBK  c56833d56833