@article{VMJ_2014_16_3_a2,
     author = {A. A. Egorov},
     title = {Solutions of the differential inequality with a~null {Lagrangian:} higher integrability and removability of {singularities.~I}},
     journal = {Vladikavkazskij matemati\v{c}eskij \v{z}urnal},
     pages = {22--37},
     publisher = {mathdoc},
     volume = {16},
     number = {3},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/VMJ_2014_16_3_a2/}
}