@article{MGTA_2010_2_1_a0,
     author = {Arina N. Akimova and Viktor V. Zakharov},
     title = {A method for estimating the core of root game},
     journal = {Matemati\v{c}eska\^a teori\^a igr i e\"e prilo\v{z}eni\^a},
     pages = {3--26},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MGTA_2010_2_1_a0/}
}