@article{GDZPPN002038153,
title = {Supernumary polylogarithmic ladders and related functional equations.},
journal = {Aequationes mathematicae},
volume = {40},
year = {1990},
pages = {210-253},
zbl = {0729.33015},
url = {http://dml.mathdoc.fr/item/GDZPPN002038153}
}
Lewin, L.; Abouzahra, M. Supernumary polylogarithmic ladders and related functional equations.. Aequationes mathematicae, Tome 40 (1990) pp. 210-253. http://gdmltest.u-ga.fr/item/GDZPPN002038153/