@article{DE_1992_28_2_a4,
     author = {A. P. Yakovleva},
     title = {An optimization problem and necessary extremum conditions for differential inclusions with aftereffect},
     journal = {Differencialʹnye uravneni\^a},
     pages = {223--231},
     publisher = {mathdoc},
     volume = {28},
     number = {2},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1992_28_2_a4/}
}