@article{IM2_2011_75_1_a3,
     author = {G. E. Ivanov},
     title = {A saddle-point theorem for strongly and weakly convex functions},
     journal = {Izvestiya. Mathematics },
     pages = {73--100},
     publisher = {mathdoc},
     volume = {75},
     number = {1},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2011_75_1_a3/}
}