@article{DAN_1969_184_4_a11,
     author = {L. N. Deryugin and A. V. Chekan},
     title = {General waveguide theory and the limit resolution of multiray spectrum analyzers},
     journal = {Doklady Akademii Nauk},
     pages = {807--810},
     publisher = {mathdoc},
     volume = {184},
     number = {4},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_184_4_a11/}
}