TY - CHAP A1 - Grötschel, Martin A1 - Jünger, Michael A1 - Reinelt, Gerhard ED - van Hemmen, J. ED - Morgenstern, I. T1 - Calculating Exact Ground States of Spin Glasses T2 - Proceedings of the Heidelberg Colloquium on “Glassy Dynamics”, Lecture Notes in Physics 275 Y1 - 1987 SP - 325 EP - 353 PB - Springer ER -