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@article{IM_1981__65_142855, author = {K. Bongartz and P. Gabriel}, title = {Covering {Spaces} in {Representation-Theory.}}, journal = {Inventiones mathematicae}, pages = {331--378}, publisher = {mathdoc}, volume = {65}, year = {1981}, zbl = {0482.16026}, url = {http://geodesic.mathdoc.fr/item/IM_1981__65_142855/} }
K. Bongartz; P. Gabriel. Covering Spaces in Representation-Theory.. Inventiones mathematicae, Tome 65 (1981), pp. 331-378. http://geodesic.mathdoc.fr/item/IM_1981__65_142855/