@article{MZM_1976_19_3_a10,
     author = {V. V. Ermakov},
     title = {A~group of transformations connected with the {Markov} cubic surface},
     journal = {Matemati\v{c}eskie zametki},
     pages = {419--428},
     publisher = {mathdoc},
     volume = {19},
     number = {3},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1976_19_3_a10/}
}