Alternating Direction Implicit Methods. - Garrett Birkhoff; Richard S. Varga; David Young (Adv. Comput., 1962)

Two Hadamard Numbers for Matrices. - Garrett Birkhoff (Commun. ACM, 1975)

Term Rewriting and Universal Algebra in Historical Perspective (Abstract of Invited Lecture). - Garrett Birkhoff (RTA, 1989)