Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1961_141_4_a13, author = {D. B. Fuchs}, title = {On homotopy duality}, journal = {Doklady Akademii Nauk}, pages = {818--821}, publisher = {mathdoc}, volume = {141}, number = {4}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1961_141_4_a13/} }
D. B. Fuchs. On homotopy duality. Doklady Akademii Nauk, Tome 141 (1961) no. 4, pp. 818-821. http://geodesic.mathdoc.fr/item/DAN_1961_141_4_a13/