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@article{CMH_1988__63_4_140139, author = {F.J. Pedit}, title = {A non-immersion theorem for spaceforms.}, journal = {Commentarii mathematici Helvetici}, pages = {672--674}, publisher = {mathdoc}, volume = {63}, number = {4}, year = {1988}, zbl = {0655.53049}, url = {http://geodesic.mathdoc.fr/item/CMH_1988__63_4_140139/} }
F.J. Pedit. A non-immersion theorem for spaceforms.. Commentarii mathematici Helvetici, Tome 63 (1988) no. 4, pp. 672-674. http://geodesic.mathdoc.fr/item/CMH_1988__63_4_140139/