@article{DAN_1968_178_2_a7,
     author = {A. A. Lorencs},
     title = {Representations of sets of solutions of systems of equations with one unknown in a free group},
     journal = {Doklady Akademii Nauk},
     pages = {290--292},
     publisher = {mathdoc},
     volume = {178},
     number = {2},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_178_2_a7/}
}