@article{02163632,
title = {<title-group xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><article-title xml:lang="en"><math><mrow><msub><mi>L</mi><mn>2</mn></msub><mrow><mo>(</mo><mtext>$\Sigma$</mtext><mo>)</mo></mrow></mrow></math>-regularity of the boundary to boundary operator <math><mrow><msup><mi>B</mi><mo>*</mo></msup><mi>L</mi></mrow></math> for hyperbolic and Petrowski PDEs.</article-title></title-group>},
journal = {Abstract and Applied Analysis},
volume = {2003},
year = {2003},
pages = {1061-1139},
doi = {10.1155/S1085337503305032},
zbl = {1064.35100},
language = {en},
url = {http://dml.mathdoc.fr/item/02163632}
}
Lasiecka, I.; Triggiani, R. -regularity of the boundary to boundary operator for hyperbolic and Petrowski PDEs.. Abstract and Applied Analysis, Tome 2003 (2003) pp. 1061-1139. doi : 10.1155/S1085337503305032. http://gdmltest.u-ga.fr/item/02163632/