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@article{DM_1992_4_1_a5, author = {O. V. Borodin}, title = {A~structural theorem on planar graphs and its application to coloring}, journal = {Diskretnaya Matematika}, pages = {60--65}, publisher = {mathdoc}, volume = {4}, number = {1}, year = {1992}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DM_1992_4_1_a5/} }
O. V. Borodin. A~structural theorem on planar graphs and its application to coloring. Diskretnaya Matematika, Tome 4 (1992) no. 1, pp. 60-65. http://geodesic.mathdoc.fr/item/DM_1992_4_1_a5/