@article{DAN_1963_148_6_a4,
     author = {A. A. Lorencs},
     title = {Solution of systems of equations in one unknown in free groups},
     journal = {Doklady Akademii Nauk},
     pages = {1253--1256},
     publisher = {mathdoc},
     volume = {148},
     number = {6},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_148_6_a4/}
}