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@article{MZM_2010_87_1_a8, author = {O. V. Markova}, title = {On {Some} {Properties} of the {Length} {Function}}, journal = {Matemati\v{c}eskie zametki}, pages = {83--91}, publisher = {mathdoc}, volume = {87}, number = {1}, year = {2010}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_2010_87_1_a8/} }
O. V. Markova. On Some Properties of the Length Function. Matematičeskie zametki, Tome 87 (2010) no. 1, pp. 83-91. http://geodesic.mathdoc.fr/item/MZM_2010_87_1_a8/