@article{DE_1986_22_2_a8,
     author = {V. I. Plotnikov and I. M. Starobinets},
     title = {Phase inclusions in optimal control problems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {236--247},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_2_a8/}
}