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@article{MM2_1988__61_4_155316, author = {F\'elix de Delgado de la Manta}, title = {Groenstein curves and symmetry of the semigroup of values.}, journal = {Manuscripta mathematica}, pages = {285--296}, publisher = {mathdoc}, volume = {61}, number = {4}, year = {1988}, zbl = {0692.13017}, url = {http://geodesic.mathdoc.fr/item/MM2_1988__61_4_155316/} }
Félix de Delgado de la Manta. Groenstein curves and symmetry of the semigroup of values.. Manuscripta mathematica, Tome 61 (1988) no. 4, pp. 285-296. http://geodesic.mathdoc.fr/item/MM2_1988__61_4_155316/