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@article{MMKZ_2004_2_a80, author = {S. M. Sitnik and A. S. Timashov}, title = {{\CYRO}{\cyrp}{\cyrr}{\cyre}{\cyrd}{\cyre}{\cyrl}{\cyre}{\cyrn}{\cyri}{\cyrya} {\cyrm}{\cyrn}{\cyro}{\cyrg}{\cyro}{\cyrf}{\cyro}{\cyrk}{\cyru}{\cyrs}{\cyrn}{\cyrery}{\cyrh} {\cyrk}{\cyrr}{\cyri}{\cyrv}{\cyrery}{\cyrh}}, journal = {Matematicheskoe Modelirovanie i Kraevye Zadachi}, pages = {246--249}, publisher = {mathdoc}, volume = {2}, year = {2004}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MMKZ_2004_2_a80/} }
S. M. Sitnik; A. S. Timashov. Определения многофокусных кривых. Matematicheskoe Modelirovanie i Kraevye Zadachi, Proceedings of the All-Russian Scientific Conference (26–28 May 2004). Part 2, Tome 2 (2004), pp. 246-249. http://geodesic.mathdoc.fr/item/MMKZ_2004_2_a80/