@book{286445,
	author = {Baues, Hans J., and ProQuest (Firm)},
	title = {Combinatorial homotopy and 4-dimensional complexes},
	publisher = {W. de Gruyter,},
	year = {1991.},
	address = {Berlin ;},
	url = {https://ebookcentral.proquest.com/lib/kuct-ebooks/detail.action?docID=936323}
}