@article{CMH_1978__53_139720,
     author = {G. Mislin and Peter Hilton and J. Roitberg},
     title = {On {co-H-spaces.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {1--14},
     publisher = {mathdoc},
     volume = {53},
     year = {1978},
     zbl = {0372.55009},
     url = {http://geodesic.mathdoc.fr/item/CMH_1978__53_139720/}
}