@article{DAN_1970_192_6_a0,
     author = {M. Z. Berkolaiko and Ya. B. Rutitskii},
     title = {Operators in {H\"older} spaces},
     journal = {Doklady Akademii Nauk},
     pages = {1199--1201},
     publisher = {mathdoc},
     volume = {192},
     number = {6},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1970_192_6_a0/}
}