@article{CHEB_2010_11_3_a7,
     author = {V. G. Durnev and O. V. Zetkina},
     title = {On equations with subsemigroup constraints on solutions in free semigroups},
     journal = {\v{C}eby\v{s}evskij sbornik},
     pages = {78--87},
     publisher = {mathdoc},
     volume = {11},
     number = {3},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHEB_2010_11_3_a7/}
}