@article{DAN_1965_160_3_a9,
     author = {A. A. Lorencs},
     title = {Equations without coefficients in free groups},
     journal = {Doklady Akademii Nauk},
     pages = {538--540},
     publisher = {mathdoc},
     volume = {160},
     number = {3},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_160_3_a9/}
}