@article{DAN_1997_352_6_a5,
     author = {P. I. Naumkin},
     title = {Evolution of a step for the {Benjamin--Bona--Mahony--Burgers} equation},
     journal = {Doklady Akademii Nauk},
     pages = {742--745},
     publisher = {mathdoc},
     volume = {352},
     number = {6},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1997_352_6_a5/}
}