@article{INTA_1968_a0,
     author = {L. M. Gluskin and B. M. Shain and L. N. Shevrin},
     title = {Semigroups},
     journal = {Itogi Nauki i Tekhniki. Seriya Algebra. Geometriya. Topologiya },
     pages = {9--56},
     publisher = {mathdoc},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/INTA_1968_a0/}
}