@article{DAN_1986_287_3_a9,
     author = {V. V. Rybakov},
     title = {Equations in a free {topo-Boolean} algebra and the substitution},
     journal = {Doklady Akademii Nauk},
     pages = {554--557},
     publisher = {mathdoc},
     volume = {287},
     number = {3},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1986_287_3_a9/}
}