@article{ZNSL_1986_152_a0,
     author = {A. A. Arkhipova and N. N. Ural'tseva},
     title = {The regularity of solutions of diagonal elliptic systems under boundary convex constraints},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {5--17},
     publisher = {mathdoc},
     volume = {152},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1986_152_a0/}
}