@article{1200691734,
author = {Matsuzawa, Tadato},
title = {Regularity at the boundary for solutions of hypoelliptic equations},
journal = {Osaka J. Math.},
volume = {3},
number = {1},
year = {1966},
pages = { 313-334},
language = {en},
url = {http://dml.mathdoc.fr/item/1200691734}
}
Matsuzawa, Tadato. Regularity at the boundary for solutions of hypoelliptic equations. Osaka J. Math., Tome 3 (1966) no. 1, pp. 313-334. http://gdmltest.u-ga.fr/item/1200691734/