@article{VKAM_2016_4_a1,
     author = {Z. V. Kudaeva},
     title = {Extremum principle and solution uniqueness of the {Dirichlet} problem for the {Lavrent'ev-Bitsadze} equation with two parallel lines of degeneracy},
     journal = {Vestnik KRAUNC. Fiziko-matemati\v{c}eskie nauki},
     pages = {12--16},
     publisher = {mathdoc},
     number = {4},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VKAM_2016_4_a1/}
}