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@article{MI_1980__55_189532, author = {{\CYRI}.{\CYRU}. {\CYRB}{\cyrr}{\cyro}{\cyrn}{\cyrsh}{\cyrt}{\cyre}{\cyrishrt}{\cyrn} and {\CYRV}.{\CYRP}. {\CYRB}{\cyru}{\cyrr}{\cyrd}{\cyra}{\cyre}{\cyrv}}, title = {{\CYRC}{\cyre}{\cyrp}{\cyrn}{\cyra}{\cyrya} {\cyrr}{\cyre}{\cyrk}{\cyru}{\cyrr}{\cyrr}{\cyre}{\cyrn}{\cyrt}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyrsftsn} {\cyri} {\cyrr}{\cyra}{\cyrs}{\cyrsh}{\cyri}{\cyrr}{\cyre}{\cyrn}{\cyri}{\cyrya} {\cyrd}{\cyri}{\cyrn}{\cyra}{\cyrm}{\cyri}{\cyrch}{\cyre}{\cyrs}{\cyrk}{\cyri}{\cyrh} {\cyrs}{\cyri}{\cyrs}{\cyrt}{\cyre}{\cyrm}}, journal = {Matemati\v{c}eskie issledovani\^a}, pages = {3--11}, publisher = {mathdoc}, volume = {55}, year = {1980}, zbl = {0447.54054}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MI_1980__55_189532/} }
И.У. Бронштейн; В.П. Бурдаев. Цепная рекуррентность и расширения динамических систем. Matematičeskie issledovaniâ, Tome 55 (1980), pp. 3-11. http://geodesic.mathdoc.fr/item/MI_1980__55_189532/