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@article{SF_1997__54_2_135524, author = {S. Duplij}, title = {Some abstract properties of semigroups appearing in superconformal theories.}, journal = {Semigroup forum}, pages = {253--260}, publisher = {mathdoc}, volume = {54}, number = {2}, year = {1997}, zbl = {0879.58009}, url = {http://geodesic.mathdoc.fr/item/SF_1997__54_2_135524/} }
S. Duplij. Some abstract properties of semigroups appearing in superconformal theories.. Semigroup forum, Tome 54 (1997) no. 2, pp. 253-260. http://geodesic.mathdoc.fr/item/SF_1997__54_2_135524/