MEDCAT: an APL program for medical diagnosis, consultation, and teaching. - Wilbur D. Hagamen; Martin Gardy; Gregory Bell; Edwin Rekosh; Steven Zatz (APL, 1985)

A Comparative Analysis of Principal Component Analysis (PCA) and Singular Value Decomposition (SVD) as Dimensionality Reduction Techniques. - Michael Gyimadu; Gregory Bell (CoRR, 2025)