@article{DAN_1975_220_3_a6,
     author = {O. I. Reinov},
     title = {Operators of type $RN$ in {Banach} spaces},
     journal = {Doklady Akademii Nauk},
     pages = {528--531},
     publisher = {mathdoc},
     volume = {220},
     number = {3},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_220_3_a6/}
}