@article{MZM_1992_51_1_a3,
     author = {V. A. Buslov and K. A. Makarov},
     title = {Lifetimes and lower eigenvalues of an operator of small diffusion},
     journal = {Matemati\v{c}eskie zametki},
     pages = {20--31},
     publisher = {mathdoc},
     volume = {51},
     number = {1},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1992_51_1_a3/}
}