http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
dirichlet problem for the Laplacian in bounded and unbounded domains
a new approach to weak, strong, and (2+k)-solutions in Sobolev-type spaces
Includes bibliographical references (pages 291-294).
Pitman research notes in mathematics series. 360