@article{1029002209,
author = {Chang, Theodore},
title = {Equivariant maps with nonzero Hopf invariant.},
journal = {Michigan Math. J.},
volume = {26},
number = {1},
year = {1979},
pages = { 151-159},
language = {en},
url = {http://dml.mathdoc.fr/item/1029002209}
}
Chang, Theodore. Equivariant maps with nonzero Hopf invariant.. Michigan Math. J., Tome 26 (1979) no. 1, pp. 151-159. http://gdmltest.u-ga.fr/item/1029002209/