@article{DAN_1966_171_5_a9,
     author = {Yu. I. Khmelevskii},
     title = {Word equations without coefficients},
     journal = {Doklady Akademii Nauk},
     pages = {1047--1049},
     publisher = {mathdoc},
     volume = {171},
     number = {5},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1966_171_5_a9/}
}