@article{AA_1992_4_6_a8,
     author = {A. S. Matveev and V. A. Yakubovich},
     title = {Nonconvex problems of global optimization},
     journal = {Algebra i analiz},
     pages = {189--219},
     year = {1992},
     volume = {4},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1992_4_6_a8/}
}