@inbook{Fleischmann2003,
	title = {Handbooks in Operations Research and Management Science},
	author = {Bernhard Fleischmann and Herbert Meyr},
	chapter = {Planning Hierarchy, Modeling and Advanced Planning Systems},
	pages = {455--523},
	publisher = {Elsevier},
	url = {http://www.sciencedirect.com/science/article/B7P6G-4FPHYXC-B/1/e0ecdc3bb9a7f08b4bd8fed56490d812},
	volume = {Volume 11},
	year = {2003},
	biburl = {http://www.bibsonomy.org/bibtex/26917b32569fd4bd236918712c5c9ca89/smicha},
	keywords = {imported }
}