@article{02151030, title = {Extended affine root systems of type }, journal = {Journal of Lie Theory}, volume = {15}, year = {2005}, pages = {145-181}, zbl = {1100.17003}, language = {en}, url = {http://dml.mathdoc.fr/item/02151030} }
Azam, Saeid; Khalili, Valiollah; Yousofzadeh, Malihe. Extended affine root systems of type . Journal of Lie Theory, Tome 15 (2005) pp. 145-181. http://gdmltest.u-ga.fr/item/02151030/