Montage: Breaking Windows into Small Pieces. - Paul Haahr (USENIX Summer, 1990)

Es: A shell with higher-order functions. - Paul Haahr; Byron Rakitzis (USENIX Winter, 1993)

A Monotonic Superclass Linearization for Dylan. - Kim Barrett; Bob Cassels; Paul Haahr; David A. Moon; Keith Playford; P. Tucker Withington (OOPSLA, 1996)