Cannon, John Rozier Inverse Problems ( ISNM 77 ): Proceedings of the Conference held at the Mathematical Research Institute at Oberwolfach, Black Forest, May 18-24, 1986 / edited by John Rozier Cannon - Basel; Birkhauser Verlag: 1986. - 192p. ISBN: 3764318422 Dewey Class. No.: 515.35 / CAN/I