Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1984_35_3_a3, author = {A. V. Khokhlov}, title = {Homotopy covariant functors}, journal = {Matemati\v{c}eskie zametki}, pages = {343--348}, publisher = {mathdoc}, volume = {35}, number = {3}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1984_35_3_a3/} }
A. V. Khokhlov. Homotopy covariant functors. Matematičeskie zametki, Tome 35 (1984) no. 3, pp. 343-348. http://geodesic.mathdoc.fr/item/MZM_1984_35_3_a3/