@article{104943,
author = {Zden\v ek Hedrl\'\i n},
title = {On a number of commuting transformations},
journal = {Commentationes Mathematicae Universitatis Carolinae},
volume = {004},
year = {1963},
pages = {132-136},
zbl = {0134.01703},
mrnumber = {0168476},
language = {en},
url = {http://dml.mathdoc.fr/item/104943}
}
Hedrlín, Zdeněk. On a number of commuting transformations. Commentationes Mathematicae Universitatis Carolinae, Tome 004 (1963) pp. 132-136. http://gdmltest.u-ga.fr/item/104943/