@article{GDZPPN002235706, title = {Dirichlet problem. Characterization of regularity.}, journal = {Manuscripta mathematica}, volume = {83}, year = {1994}, pages = {47-56}, zbl = {0816.35009}, url = {http://dml.mathdoc.fr/item/GDZPPN002235706} }
Di Fazio, G. Dirichlet problem. Characterization of regularity.. Manuscripta mathematica, Tome 83 (1994) pp. 47-56. http://gdmltest.u-ga.fr/item/GDZPPN002235706/