On the primality of n! +- 1 and 2 x 3 x 5 x ... x p +- 1. - Chris K. Caldwell; Yves Gallot (Math. Comput., 2002)

Powers of Sierpiński Numbers Base B. - Chris K. Caldwell; Takao Komatsu (Integers, 2010)

Perceived value of scholarly articles. - Carol Tenopir; Suzie Allard; Benjamin J. Bates; Kenneth J. Levine; Donald W. King; Ben Birch; Regina Mays; Chris K. Caldwell (Learn. Publ., 2011)