@article{DE_2000_36_5_a11,
     author = {S. P. Lavrenyuk and M. B. Ptashnik},
     title = {Problem without initial conditions for a nonlinear pseudoparabolic system},
     journal = {Differencialʹnye uravneni\^a},
     pages = {667--673},
     publisher = {mathdoc},
     volume = {36},
     number = {5},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2000_36_5_a11/}
}