%0 Journal Article %A P. I. Naumkin %T Evolution of a step for the Benjamin–Bona–Mahony–Burgers equation %J Doklady Akademii Nauk %D 1997 %P 742-745 %V 352 %N 6 %U http://geodesic.mathdoc.fr/item/DAN_1997_352_6_a5/ %G ru %F DAN_1997_352_6_a5