%% -*-BibTeX-*- @TechReport{Achterberg2004, author = "Tobias Achterberg", title = "{SCIP} - a framework to integrate Constraint and Mixed Integer Programming", number = "04-19", year = "2004", URL = "http://www.zib.de/Publications/abstracts/ZR-04-19", intitution = "Zuse Institute Berlin", language = "English", }