@article{DAN_1966_167_3_a11,
     author = {S. A. Chunikhin},
     title = {Indexials and normalizers},
     journal = {Doklady Akademii Nauk},
     pages = {531--533},
     year = {1966},
     volume = {167},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1966_167_3_a11/}
}