@article{02212070,
title = {On ramification and genus of recursive towers.},
journal = {Portugaliae Mathematica. Nova S\'erie},
volume = {61},
year = {2005},
pages = {231-243},
zbl = {1096.11021},
language = {en},
url = {http://dml.mathdoc.fr/item/02212070}
}
Beelen, Peter; Garcia, Arnaldo; Stichtenoth, Henning. On ramification and genus of recursive towers.. Portugaliae Mathematica. Nova Série, Tome 61 (2005) pp. 231-243. http://gdmltest.u-ga.fr/item/02212070/