@article{1029000893,
author = {Williams, F. D.},
title = {Quasi-commutativity of $H$-spaces.},
journal = {Michigan Math. J.},
volume = {19},
number = {1},
year = {1972},
pages = { 209-213},
language = {en},
url = {http://dml.mathdoc.fr/item/1029000893}
}
Williams, F. D. Quasi-commutativity of $H$-spaces.. Michigan Math. J., Tome 19 (1972) no. 1, pp. 209-213. http://gdmltest.u-ga.fr/item/1029000893/