@article{TIMM_2018_24_1_a21,
     author = {D. V. Khlopin},
     title = {On necessary limit gradients in control problems with infinite horizon},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {247--256},
     year = {2018},
     volume = {24},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2018_24_1_a21/}
}