@article{MZM_1995_58_4_a8,
     author = {Yu. I. Ozhigov},
     title = {Parametric equations in free groups},
     journal = {Matemati\v{c}eskie zametki},
     pages = {569--581},
     publisher = {mathdoc},
     volume = {58},
     number = {4},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1995_58_4_a8/}
}