@article{FAA_1985_19_1_a13,
     author = {V. Ya. Ivrii},
     title = {Asymptotics of the discrete spectrum for certain operators in $\mathbb{R}^d$},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {73--74},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1985_19_1_a13/}
}