@article{RM_1969_24_5_a2,
     author = {B. Kh. Sendov},
     title = {Some questions of the theory of approximations of functions and sets in the {Hausdorff} metric},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {143--183},
     publisher = {mathdoc},
     volume = {24},
     number = {5},
     year = {1969},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1969_24_5_a2/}
}