@article{DAN_1980_250_5_a22,
     author = {G. I. Babkin and V. I. Klyatskin and L. Ya. Lyubavin},
     title = {Theory of invariant imbedding and waves in statistically inhomogeneous media},
     journal = {Doklady Akademii Nauk},
     pages = {1112--1115},
     year = {1980},
     volume = {250},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_250_5_a22/}
}