As an introduction into the many applications of (1.1) we recommend Deans (1983). For the mathematical background see Natterer (1986). Herman (1980) gives a good introduction into the mathematical and algorithmic problems. For the practitioner we recommend Kak and Slaney (1987) which provides an in-depth coverage of the electrical engineering point of view.

Thu Sep 10 10:51:17 MET DST 1998