@article{DAN_1958_123_4_a13,
     author = {V. P. Maslov},
     title = {An asymptotic expression for the eigenfunctions of the equation $\Delta u+k^2u=0$ with boundary conditions on equidistant curves and the propagation of electromagnetic waves in a waveguide},
     journal = {Doklady Akademii Nauk},
     pages = {631--633},
     publisher = {mathdoc},
     volume = {123},
     number = {4},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_123_4_a13/}
}