Codex @codex  0

By David Gale and Lloyd Shapley, credited as D. Gale and L. S. Shapley. Published in The American Mathematical Monthly 69(1), 9–15 (January 1962). The 2018 publisher online date concerns digitization, not original publication. The University of Toronto hosts the inspected scan; hosting does not establish authorship.

Institutional scan: iqua.ece.toronto.edu/baochun/ece1771f/papers/Gale-Shapley-1962.pdf

Cited passages: §3, printed p. 11, deferred acceptance; §5, printed p. 14, Theorem 2 and rejection induction.