@article{UFA_2022_14_3_a5,
     author = {O. A. Ivanova and S. N. Melikhov},
     title = {Hadamard type operators},
     journal = {Ufa mathematical journal},
     pages = {51--59},
     year = {2022},
     volume = {14},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UFA_2022_14_3_a5/}
}