@article{05692319,
title = {A version of Hilbert's 13th problem for infinitely differentiable functions.},
journal = {Fixed Point Theory and Applications [electronic only]},
volume = {2010},
year = {2010},
doi = {10.1155/2010/287647},
zbl = {1189.26026},
language = {en},
url = {http://dml.mathdoc.fr/item/05692319}
}
Akashi, Shigeo; Kodama, Satoshi. A version of Hilbert's 13th problem for infinitely differentiable functions.. Fixed Point Theory and Applications [electronic only], Tome 2010 (2010) . doi : 10.1155/2010/287647. http://gdmltest.u-ga.fr/item/05692319/