@article{MZM_2021_109_2_a7,
     author = {A. A. Makhnev},
     title = {Automorphisms of a {Distance} {Regular} {Graph} with {Intersection} {Array} $\{21,18,12,4;1,1,6,21\}$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {247--256},
     publisher = {mathdoc},
     volume = {109},
     number = {2},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2021_109_2_a7/}
}