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@article{MO_2006_37_2_a1, author = {A. G. Myakishev}, title = {On {Some} {Straight} {Lines} in a {Quadrilateral}}, journal = {Matemati\v{c}eskoe obrazovanie}, pages = {7--17}, publisher = {mathdoc}, volume = {37}, number = {2}, year = {2006}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MO_2006_37_2_a1/} }
A. G. Myakishev. On Some Straight Lines in a Quadrilateral. Matematičeskoe obrazovanie, Tome 37 (2006) no. 2, pp. 7-17. http://geodesic.mathdoc.fr/item/MO_2006_37_2_a1/