Simandar, C. G. The Dirichlet Problem For The Laplacian in Bounded And Unbounded Domains / by C.G.Simader & H. Sohr - USA: Addison Wesley longman Limited, 1996. - 294p. - Pitman research notes in mathematics series 360 . ISBN: 9780582209534 Dewey Class. No.: 515.353 / SIM/T