@article{MZM_1995_57_5_a10,
     author = {T. V. Savina},
     title = {On~reflection formulas for higher-order elliptic equations},
     journal = {Matemati\v{c}eskie zametki},
     pages = {732--746},
     publisher = {mathdoc},
     volume = {57},
     number = {5},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1995_57_5_a10/}
}