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@article{MAN_1985__270_182945, author = {Eugen Popa}, title = {Finely {Open} {Morphisms} of {H-Cones.}}, journal = {Mathematische Annalen}, pages = {83--86}, publisher = {mathdoc}, volume = {270}, year = {1985}, zbl = {0535.31005}, url = {http://geodesic.mathdoc.fr/item/MAN_1985__270_182945/} }
Eugen Popa. Finely Open Morphisms of H-Cones.. Mathematische Annalen, Tome 270 (1985), pp. 83-86. http://geodesic.mathdoc.fr/item/MAN_1985__270_182945/