@article{10_4064_am31_4_6,
     author = {Adam Kubica},
     title = {The regularity of weak and very
 weak solutions of the {Poisson} equation
 on polygonal domains with mixed
 boundary conditions (part {I)}},
     journal = {Applicationes Mathematicae},
     pages = {443--456},
     publisher = {mathdoc},
     volume = {31},
     number = {4},
     year = {2004},
     doi = {10.4064/am31-4-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/am31-4-6/}
}