@article{FAA_1980_14_1_a23,
     author = {M. A. Perel'muter and Yu. A. Semenov},
     title = {Self-adjointness of elliptic operators with a finite or infinite number of variables},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {81--82},
     publisher = {mathdoc},
     volume = {14},
     number = {1},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1980_14_1_a23/}
}