Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{CMH_1985__60_140000, author = {S.P. Plotnick and A. I. Suciu}, title = {k-Invariants of knotted 2-spheres.}, journal = {Commentarii mathematici Helvetici}, pages = {54--84}, publisher = {mathdoc}, volume = {60}, year = {1985}, zbl = {0568.57017}, url = {http://geodesic.mathdoc.fr/item/CMH_1985__60_140000/} }
S.P. Plotnick; A. I. Suciu. k-Invariants of knotted 2-spheres.. Commentarii mathematici Helvetici, Tome 60 (1985), pp. 54-84. http://geodesic.mathdoc.fr/item/CMH_1985__60_140000/