Mathematical theory of diffraction - Sommerfeld, Arnold; Nagem, Raymond J.; Zampolli, Mario; Sandri, Guido (Birkhäuser, 2004)
Includes bibliographical references(p.135-139) and index "Based on the original German edition ... appearing in Mathematische Annalen 47 (1986), 317-374, Springer-Verlag" - T.p. verso