On the boundary behavior of solutions to a class of elliptic partial differential equations Kjell-Ove Widman OriginalPaper Pages: 485 - 533
Uniqueness in cauchy's problem for elliptic equations with double characteristics R. N. Pederson OriginalPaper Pages: 535 - 549
Extension of functions satisfying lipschitz conditions Gunnar Aronsson OriginalPaper Pages: 551 - 561