@article{3019,
author = {Grisvard, Pierre},
title = {Singular solutions of elliptic boundary value problems in polyhedra},
journal = {Portugaliae mathematica},
volume = {41},
year = {1982},
pages = {367-382},
zbl = {0567.35025},
mrnumber = {0766865},
language = {en},
url = {http://dml.mathdoc.fr/item/3019}
}
Grisvard, Pierre. Singular solutions of elliptic boundary value problems in polyhedra. Portugaliae mathematica, Tome 41 (1982) pp. 367-382. http://gdmltest.u-ga.fr/item/3019/