@article{FAA_1981_15_2_a13,
     author = {S. Z. Levendorskii},
     title = {General calculus of pseudodifferential operators and asymptotic properties of the spectrum},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {79--80},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1981_15_2_a13/}
}