@article{FAA_1992_26_2_a2,
     author = {B. M. Levitan and A. B. Khasanov},
     title = {Estimation of the {Cauchy} function for finite-zone nonperiodic potentials},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {18--28},
     publisher = {mathdoc},
     volume = {26},
     number = {2},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1992_26_2_a2/}
}