Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{CMH_1973__48_139535, author = {Allan J. Sieradski and Michael N. Dyer}, title = {Trees of {Homotopy} {Types} of {Two-Dimensional} {CW-Complexes}}, journal = {Commentarii mathematici Helvetici}, pages = {31--44}, publisher = {mathdoc}, volume = {48}, year = {1973}, zbl = {0262.55014}, url = {http://geodesic.mathdoc.fr/item/CMH_1973__48_139535/} }
Allan J. Sieradski; Michael N. Dyer. Trees of Homotopy Types of Two-Dimensional CW-Complexes. Commentarii mathematici Helvetici, Tome 48 (1973), pp. 31-44. http://geodesic.mathdoc.fr/item/CMH_1973__48_139535/