Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS2_1971__29_166207, author = {John Harper and Claude Schochet}, title = {Coalgebra {Extensions} in {Two-Stage} {Postnikov} {Systems.}}, journal = {Mathematica Scandinavica}, pages = {232--236}, publisher = {mathdoc}, volume = {29}, year = {1971}, zbl = {0235.55019}, url = {http://geodesic.mathdoc.fr/item/MS2_1971__29_166207/} }
John Harper; Claude Schochet. Coalgebra Extensions in Two-Stage Postnikov Systems.. Mathematica Scandinavica, Tome 29 (1971), pp. 232-236. http://geodesic.mathdoc.fr/item/MS2_1971__29_166207/