Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1968_12_a13, author = {O. V. Shimel'fenig}, title = {The representation of semigroups by partial transformations}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {117--121}, publisher = {mathdoc}, number = {12}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1968_12_a13/} }
O. V. Shimel'fenig. The representation of semigroups by partial transformations. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 12 (1968), pp. 117-121. http://geodesic.mathdoc.fr/item/IVM_1968_12_a13/