@article{1102992827,
author = {Nickel, Paul A.},
title = {A note on principal functions and multiply-valent canonical mappings.},
journal = {Pacific J. Math.},
volume = {23},
number = {3},
year = {1967},
pages = { 283-288},
language = {en},
url = {http://dml.mathdoc.fr/item/1102992827}
}
Nickel, Paul A. A note on principal functions and multiply-valent canonical mappings.. Pacific J. Math., Tome 23 (1967) no. 3, pp. 283-288. http://gdmltest.u-ga.fr/item/1102992827/