@article{1256047713, author = {Kreuger, Warren M.}, title = {Relation with the Hopf invariant revisited}, journal = {Illinois J. Math.}, volume = {24}, number = {4}, year = {1980}, pages = { 188-191}, language = {en}, url = {http://dml.mathdoc.fr/item/1256047713} }
Kreuger, Warren M. Relation with the Hopf invariant revisited. Illinois J. Math., Tome 24 (1980) no. 4, pp. 188-191. http://gdmltest.u-ga.fr/item/1256047713/