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https://www.impan.pl/en/publishing-house/journals-and-series/colloquium-mathematicum/all/en/publishing-house/journals-and-series/colloquium-mathematicum/all/53/2/105514/homeotopy-groups-of-3-manifolds-an-isomorphism-theorem Homeotopy groups of 3-manifolds---an isomorphism theoremAll homeotopygroupsmanifoldsisomorphism