@article{SM_1983_46_2_a8,
     author = {V. N. Solov'ev},
     title = {On~a~criterion for convexity of a positive-homogeneous function},
     journal = {Sbornik. Mathematics},
     pages = {285--290},
     year = {1983},
     volume = {46},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1983_46_2_a8/}
}