%0 Journal Article %A Oprea, John %T A Homotopical Conner-Raymond Theorem and a Question of Gottlieb %J Canadian mathematical bulletin %D 1990 %P 219-229 %V 33 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1990-035-6/ %R 10.4153/CMB-1990-035-6 %F 10_4153_CMB_1990_035_6