@article{FAA_1999_33_2_a4,
     author = {V. Ya. Yakubov},
     title = {Estimates for {Eigenfunctions} of {Elliptic} {Operators} with {Respect} to the {Spectral} {Parameter}},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {58--67},
     publisher = {mathdoc},
     volume = {33},
     number = {2},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1999_33_2_a4/}
}