@article{MZM_1998_64_4_a5,
     author = {Ya. Sh. Il'yasov},
     title = {On asymptotics of solutions to semilinear elliptic equations near the first eigenvalue of the nonperturbed problem},
     journal = {Matemati\v{c}eskie zametki},
     pages = {543--548},
     publisher = {mathdoc},
     volume = {64},
     number = {4},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1998_64_4_a5/}
}