@article{MZM_1999_65_2_a16,
     author = {E. A. Kalita},
     title = {Local properties of solutions of higher-order elliptic systems with double nonlinearity},
     journal = {Matemati\v{c}eskie zametki},
     pages = {314--317},
     publisher = {mathdoc},
     volume = {65},
     number = {2},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1999_65_2_a16/}
}