Challenges and Directions in Formalizing the Semantics of Modeling Languages Barrett R. Bryant; Jeff Gray; Marjan Mernik; Peter J. Clarke; Robert B. France; Gabor Karsai — 2011 Computer Science and Information Systems
Eulerian calculus. IV: Specializations. Clarke, Robert J.; Foata, Dominique — 1994 Séminaire Lotharingien de Combinatoire [electronic only]
New Euler-Mahonian permutation statistics. Clarke, Robert J.; Steingrimsson, Einar; Zeng, Jiang — 1995 Séminaire Lotharingien de Combinatoire [electronic only]