@article{02174296,
title = {Dynamics of finite-multivalued transformations.},
journal = {Lobachevskii Journal of Mathematics},
volume = {17},
year = {2005},
pages = {47-60},
zbl = {1089.37001},
language = {en},
url = {http://dml.mathdoc.fr/item/02174296}
}
Igudesman, Konstantin B. Dynamics of finite-multivalued transformations.. Lobachevskii Journal of Mathematics, Tome 17 (2005) pp. 47-60. http://gdmltest.u-ga.fr/item/02174296/