@article{1200757733, author = {Hirashima, Yasumasa}, title = {On the ${\rm BP}\sb{\ast}$-Hopf invariant}, journal = {Osaka J. Math.}, volume = {12}, number = {1}, year = {1975}, pages = { 187-196}, language = {en}, url = {http://dml.mathdoc.fr/item/1200757733} }
Hirashima, Yasumasa. On the ${\rm BP}\sb{\ast}$-Hopf invariant. Osaka J. Math., Tome 12 (1975) no. 1, pp. 187-196. http://gdmltest.u-ga.fr/item/1200757733/