@article{DE_1999_35_7_a5,
     author = {V. P. Serebryakov},
     title = {$L^p$-properties of solutions of second-order quasidifferential equations and the perturbation of their coefficients on sets of positive measure},
     journal = {Differencialʹnye uravneni\^a},
     pages = {909--917},
     publisher = {mathdoc},
     volume = {35},
     number = {7},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1999_35_7_a5/}
}