@article{DE_2000_36_8_a2,
     author = {V. A. Erovenko},
     title = {The invariance of essential spectra of {Balslev{\textendash}Gamelin{\textendash}Fashian} differential operators in the scale of {Lebesgue} spaces},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1029--1036},
     year = {2000},
     volume = {36},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2000_36_8_a2/}
}