@article{SVFU_2018_25_1_a1,
     author = {I. E. Egorov and E. S. Efimova and I. M. Tikhonova},
     title = {On {Fredholm} solvability of first boundary value problem for mixed-type second-order equation with spectral parameter},
     journal = {Matemati\v{c}eskie zametki SVFU},
     pages = {15--24},
     year = {2018},
     volume = {25},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SVFU_2018_25_1_a1/}
}