%0 Journal Article %A V. A. Erovenko %T The invariance of essential spectra of Balslev--Gamelin--Fashian differential operators in the scale of Lebesgue spaces %J Differencialʹnye uravneniâ %D 2000 %P 1029-1036 %V 36 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2000_36_8_a2/ %G ru %F DE_2000_36_8_a2