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@article{MZ_1987__195_183675, author = {Jonathan A. Hillman}, title = {Three-Dimensional {Poincar\'e} {Duality} {Groups} {Which} {Are} {Extensions.}}, journal = {Mathematische Zeitschrift}, pages = {89--92}, publisher = {mathdoc}, volume = {195}, year = {1987}, zbl = {0597.57009}, url = {http://geodesic.mathdoc.fr/item/MZ_1987__195_183675/} }
Jonathan A. Hillman. Three-Dimensional Poincaré Duality Groups Which Are Extensions.. Mathematische Zeitschrift, Tome 195 (1987), pp. 89-92. http://geodesic.mathdoc.fr/item/MZ_1987__195_183675/