G. W. Peck originally was the pseudonym of Ronald Graham, Douglas West, George B. Purdy, Paul Erdős, Fan Chung, and Daniel Kleitman. Since then G. W. Peck was the author of sixteen publications, most by Kleitman alone. See http://en.wikipedia.org/wiki/G._W._Peck.

G. W. Peck originally was the pseudonym of Ronald Graham, Douglas West, George B. Purdy, Paul Erdős, Fan Chung, and Daniel Kleitman. Since then G. W. Peck was the author of sixteen publications, most by Kleitman alone. See https://en.wikipedia.org/wiki/G._W._Peck.