@article{TIMM_2014_20_3_a12,
     author = {L. A. Petrosyan and E. V. Gromova},
     title = {Two-level cooperation in coalitional differential games},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {193--203},
     publisher = {mathdoc},
     volume = {20},
     number = {3},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2014_20_3_a12/}
}