@article{VSGTU_1996_4_a0,
     author = {M. E. Lerner},
     title = {The principles of maximum and the methods of statement, boundary value problem for hyperbolic-type and equations of mixed type in bounded simply-connected and multi-connected domain where the boundary is free},
     journal = {Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences},
     pages = {5--24},
     publisher = {mathdoc},
     number = {4},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGTU_1996_4_a0/}
}