@article{DAN_1983_271_5_a8,
     author = {A. V. Pogorelov},
     title = {The maximum principle for generalized solutions of the equation $\theta(\nabla z,\,z,\,x)\det(z_{ij})=\varphi (x)$},
     journal = {Doklady Akademii Nauk},
     pages = {1064--1066},
     publisher = {mathdoc},
     volume = {271},
     number = {5},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_271_5_a8/}
}