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@article{IVM_1962_3_a12, author = {A. M. Panov}, title = {On a class of iteration systems}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {111--115}, publisher = {mathdoc}, number = {3}, year = {1962}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1962_3_a12/} }
A. M. Panov. On a class of iteration systems. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 3 (1962), pp. 111-115. http://geodesic.mathdoc.fr/item/IVM_1962_3_a12/