@article{RM_1987_42_2_a14,
     author = {V. L. Levin},
     title = {Solution of a problem of convex analysis},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {287--288},
     publisher = {mathdoc},
     volume = {42},
     number = {2},
     year = {1987},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1987_42_2_a14/}
}