@article{TMF_1994_98_1_a9,
     author = {E. L. Korotyaev and N. E. Firsova},
     title = {Diffusion in layered media at large time},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {106--148},
     publisher = {mathdoc},
     volume = {98},
     number = {1},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1994_98_1_a9/}
}