@article{GDZPPN002436353, title = {Higher Forms of Homotopy Commutativity and Finite Loop Spaces.}, journal = {Mathematische Zeitschrift}, volume = {202}, year = {1989}, pages = {363-374}, zbl = {0682.55006}, url = {http://dml.mathdoc.fr/item/GDZPPN002436353} }
McGibbon, C.A. Higher Forms of Homotopy Commutativity and Finite Loop Spaces.. Mathematische Zeitschrift, Tome 202 (1989) pp. 363-374. http://gdmltest.u-ga.fr/item/GDZPPN002436353/