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@article{MZ_1964__84_170241, author = {Donald W. Kahn}, title = {The group of homotopy equivalences.}, journal = {Mathematische Zeitschrift}, pages = {1--8}, publisher = {mathdoc}, volume = {84}, year = {1964}, zbl = {0129.38804}, url = {http://geodesic.mathdoc.fr/item/MZ_1964__84_170241/} }
Donald W. Kahn. The group of homotopy equivalences.. Mathematische Zeitschrift, Tome 84 (1964), pp. 1-8. http://geodesic.mathdoc.fr/item/MZ_1964__84_170241/