SIG - A general-purpose signal processing program. - Darrel L. Lager; Stephen G. Azevedo (Proc. IEEE, 1987)

A Radon transform computer for multidimensional signal processing. - Stephen G. Azevedo; James M. Brase; Harry E. Martz; Anil K. Jain 002; K. Wayne Current; Paul J. Hurst (ICASSP, 1989)

Effects of powder morphology and particle size on CT number estimates. - Jeffrey S. Kallman; Sabrina dePiero; Stephen G. Azevedo; Harry E. Martz (Computational Imaging, 2014)