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@article{IVM_1965_6_a22, author = {L. B. Shneperman}, title = {Semigroups of continuous transformations of closed sets of the number axis}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {166--175}, publisher = {mathdoc}, number = {6}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1965_6_a22/} }
L. B. Shneperman. Semigroups of continuous transformations of closed sets of the number axis. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 6 (1965), pp. 166-175. http://geodesic.mathdoc.fr/item/IVM_1965_6_a22/