@article{DAN_1993_333_4_a7,
     author = {A. G. Popov},
     title = {Exact formulas for constructing solutions of the {Liouville}},
     journal = {Doklady Akademii Nauk},
     pages = {440--441},
     publisher = {mathdoc},
     volume = {333},
     number = {4},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_333_4_a7/}
}