@article{DE_1996_32_10_a13,
     author = {S. P. Lavrenyuk},
     title = {Parabolic variational inequalities without initial conditions},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1396--1400},
     publisher = {mathdoc},
     volume = {32},
     number = {10},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1996_32_10_a13/}
}