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@article{MP_2009_a11, author = {F. V. Petrov}, title = {{\CYRV}{\cyrp}{\cyri}{\cyrs}{\cyra}{\cyrn}{\cyrn}{\cyrery}{\cyre} {\cyrch}{\cyre}{\cyrt}{\cyrery}{\cyrr}{\cyryo}{\cyrh}{\cyru}{\cyrg}{\cyro}{\cyrl}{\cyrsftsn}{\cyrn}{\cyri}{\cyrk}{\cyri} {\cyri} {\cyrt}{\cyrr}{\cyra}{\cyrp}{\cyre}{\cyrc}{\cyri}{\cyri} {\cyrv}~{\cyra}{\cyrb}{\cyrs}{\cyro}{\cyrl}{\cyryu}{\cyrt}{\cyrn}{\cyro}{\cyrishrt} {\cyrg}{\cyre}{\cyro}{\cyrm}{\cyre}{\cyrt}{\cyrr}{\cyri}{\cyri}}, journal = {Matematicheskoe Prosveshchenie}, pages = {149--154}, publisher = {mathdoc}, year = {2009}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MP_2009_a11/} }
F. V. Petrov. Вписанные четырёхугольники и трапеции в~абсолютной геометрии. Matematicheskoe Prosveshchenie, Matematicheskoe Prosveshchenie (2009), pp. 149-154. http://geodesic.mathdoc.fr/item/MP_2009_a11/