@article{MZM_1993_54_6_a11,
     author = {E. A. Kalita},
     title = {Conditions for the existence of a fundamental solution of quasilinear elliptic equations and higher-order systems with discontinuous coefficients},
     journal = {Matemati\v{c}eskie zametki},
     pages = {132--134},
     publisher = {mathdoc},
     volume = {54},
     number = {6},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1993_54_6_a11/}
}