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@article{MZM_1968_3_4_a13, author = {B. Kh. Sendov}, title = {Approximations relative to {Hausdorff} distance}, journal = {Matemati\v{c}eskie zametki}, pages = {481--494}, publisher = {mathdoc}, volume = {3}, number = {4}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1968_3_4_a13/} }
B. Kh. Sendov. Approximations relative to Hausdorff distance. Matematičeskie zametki, Tome 3 (1968) no. 4, pp. 481-494. http://geodesic.mathdoc.fr/item/MZM_1968_3_4_a13/