@article{02216832,
title = {Generalized Gevrey classes and multi-quasi-hyperbolic operators.},
journal = {Rendiconti del Seminario Matematico},
volume = {60},
year = {2002},
pages = {73-99},
zbl = {1177.35050},
language = {en},
url = {http://dml.mathdoc.fr/item/02216832}
}
Calvo, D. Generalized Gevrey classes and multi-quasi-hyperbolic operators.. Rendiconti del Seminario Matematico, Tome 60 (2002) pp. 73-99. http://gdmltest.u-ga.fr/item/02216832/