@techreport{repORt:2013-014,
	author = {E.T. Coughlan and M. L\"{u}bbecke and J. Schulz},
	title = {A Branch-Price-and-Cut Algorithm for Multi-Mode Resource Leveling},
	institution = {Operations Research, RWTH Aachen University},
	year = {2013},
	number = {2013--014},
	month = {Sep}
}