@article{DE_1980_16_8_a16,
     author = {Yu. V. Shestopalov},
     title = {On the justification of the spectral method for calculating natural waves of microstrip lines},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1504--1512},
     publisher = {mathdoc},
     volume = {16},
     number = {8},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1980_16_8_a16/}
}