@article{DE_1986_22_11_a2,
     author = {V. E. Volkov and I. Jo},
     title = {Estimation of the difference of partial sums of spectral decompositions corresponding to two {Schr\"odinger} operators},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1865--1876},
     publisher = {mathdoc},
     volume = {22},
     number = {11},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_11_a2/}
}