@article{IM2_1991_37_1_a4,
     author = {S. A. Nazarov},
     title = {Asymptotic solution of variational inequalities for a linear operator with a small parameter on the highest derivatives},
     journal = {Izvestiya. Mathematics },
     pages = {97--117},
     publisher = {mathdoc},
     volume = {37},
     number = {1},
     year = {1991},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1991_37_1_a4/}
}