An Investigation of Bounds for the Regulator of Quadratic Fields. - Michael J. Jacobson Jr.; Richard F. Lukes; Hugh C. Williams (Exp. Math., 1995)

Results and estimates on pseudopowers. - Eric Bach 001; Richard F. Lukes; Jeffrey O. Shallit; Hugh C. Williams (Math. Comput., 1996)

Some results on pseudosquares. - Richard F. Lukes; C. D. Patterson; Hugh C. Williams (Math. Comput., 1996)

Further tabulation of the Erdös-Selfridge function. - Richard F. Lukes; Renate Scheidler; Hugh C. Williams (Math. Comput., 1997)