@article{IVM_1980_9_a15,
     author = {V. V. Kolyan},
     title = {A~two-dimensional surface of an autocomposition space},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {77--78},
     publisher = {mathdoc},
     number = {9},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1980_9_a15/}
}