@article{bwmeta1.element.zamlynska-242e2919-d961-4f23-b6c2-4794ea588b7f,
author = {P. R. Popivanov},
title = {Microlocal properties of a class of pseudodifferential operators with double involutive characteristics},
journal = {Banach Center Publications},
volume = {19},
year = {1987},
pages = {213-224},
zbl = {0657.35137},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.zamlynska-242e2919-d961-4f23-b6c2-4794ea588b7f}
}
P. R. Popivanov. Microlocal properties of a class of pseudodifferential operators with double involutive characteristics. Banach Center Publications, Tome 19 (1987) pp. 213-224. http://gdmltest.u-ga.fr/item/bwmeta1.element.zamlynska-242e2919-d961-4f23-b6c2-4794ea588b7f/