@inproceedings{GroetschelJuengerReinelt1987, author = {Martin Gr{\"o}tschel and Michael J{\"u}nger and Gerhard Reinelt}, title = {Calculating Exact Ground States of Spin Glasses}, booktitle = {Proceedings of the Heidelberg Colloquium on "Glassy Dynamics", Lecture Notes in Physics 275}, editor = {J. van Hemmen and I. Morgenstern}, pages = {325 -- 353}, year = {1987}, }