Conference on Finite Groups--Coming of Age (1982 : Concordia University), issuing body.
Providence, Rhode Island : American Mathematical Society, [1985]
1985
AMS Special Session Geometric Group Theory (2002 : Northeastern University), issuing body.
Providence, Rhode Island : American Mathematical Society, [2005]
2005
AMS-ASL Joint Special Session on Interactions between Logic, Group Theory, and Computer Science (2003 : Baltimore, Maryland), issuing body.
Providence, Rhode Island : American Mathematical Society, [2005]
2005