@article{YJOR_2019_29_1_a4,
     author = {Anna Lempert and Alexander Kazakov and Quang Mung Le},
     title = {On {Reserve} and {Double} {Covering} {Problems} for the {Sets} {With} {Non-Euclidean} {Metrics}},
     journal = {Yugoslav journal of operations research},
     pages = {69 },
     publisher = {mathdoc},
     volume = {29},
     number = {1},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/YJOR_2019_29_1_a4/}
}