%0 Journal Article %A Mary-Elizabeth Hamstrom %T Homeotopy groups of 3-manifolds---an isomorphism theorem %J Colloquium Mathematicum %D 1987 %P 199-204 %V 53 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-53-2-199-204/ %R 10.4064/cm-53-2-199-204 %G en %F 10_4064_cm_53_2_199_204