@article{JCA_2018_25_3_JCA_2018_25_3_a15,
     author = {M. V. Balashov and G. E. Ivanov},
     title = {The {Farthest} and the {Nearest} {Points} of {Sets}},
     journal = {Journal of convex analysis},
     pages = {1019--1031},
     year = {2018},
     volume = {25},
     number = {3},
     url = {http://geodesic.mathdoc.fr/item/JCA_2018_25_3_JCA_2018_25_3_a15/}
}