@article{TIMM_2014_20_4_a7,
     author = {V. V. Gorokhovik and M. A. Trofimovich},
     title = {First and second order optimality conditions in vector optimization problems with nontransitive preference relation},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {81--96},
     publisher = {mathdoc},
     volume = {20},
     number = {4},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2014_20_4_a7/}
}