P. Callahan

发表

J. Weeks, P. Callahan, John C. Dean, 1999 .
P. Chinn, P. Callahan, S. Heubach, 2022 .
Alan W. Reid, P. Callahan, P. J. Callahan, 1998 .
Jeffrey R. Weeks, Patrick J. Callahan, Martin V. Hildebrand, 1999, Math. Comput..