@article{DAN_1984_279_5_a14,
     author = {Yu. A. Anan'ev},
     title = {Complex eikonal and its application},
     journal = {Doklady Akademii Nauk},
     pages = {1087--1091},
     year = {1984},
     volume = {279},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_279_5_a14/}
}