@article{MZM_1987_41_3_a7,
     author = {I. T. Habibullin},
     title = {Problem of linear conjugation on a circumference},
     journal = {Matemati\v{c}eskie zametki},
     pages = {342--347},
     publisher = {mathdoc},
     volume = {41},
     number = {3},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1987_41_3_a7/}
}