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@article{MZ_1983__183_173328, author = {Stehen Markvorsen}, title = {A {Sufficient} {Condition} for a {Compact} {Immersion} to be {Spherical.}}, journal = {Mathematische Zeitschrift}, pages = {407--412}, publisher = {mathdoc}, volume = {183}, year = {1983}, zbl = {0498.53040}, url = {http://geodesic.mathdoc.fr/item/MZ_1983__183_173328/} }
Stehen Markvorsen. A Sufficient Condition for a Compact Immersion to be Spherical.. Mathematische Zeitschrift, Tome 183 (1983), pp. 407-412. http://geodesic.mathdoc.fr/item/MZ_1983__183_173328/