@article{RM_1979_34_6_a24,
     author = {L. G. Mustafaev and R. B. Feizullaev},
     title = {Semiheaps and semigroups of~continuous linear maps},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {194--198},
     year = {1979},
     volume = {34},
     number = {6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1979_34_6_a24/}
}