@article{ZNSL_1969_15_a11,
     author = {B. N. Semenov},
     title = {Asymptotic of eigen functions and eigen values of the multimirror resonator},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {176--186},
     year = {1969},
     volume = {15},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1969_15_a11/}
}