%% -*-BibTeX-*- @Article{LaundyEtal2009, author = "R. Laundy and M. Perregaard and G. Tavares and H. Tipi and A. Vazacopoulos", title = "Solving Hard Mixed Integer Programming Problems with {Xpress-MP}: {A} {MIPLIB} 2003 Case Study", journal = "INFORMS Journal on Computing", volume = "21", pages = "304--319", year = "2009", }