Columbia subject headings:
Combinatorial group theory--Congresses.
Kim, A. C. (Ann Chi), 1938-
Neumann, B. H. (Bernhard Hermann), 1909-2002.
Harvard subject headings:
Combinatorial group theory--Congresses.
Kim, A. C. (Ann Chi), 1938-
Neumann, B. H. (Bernhard Hermann), 1909-
Princeton subject headings:
Combinatorial group theory--Congresses.
Kim, A. C. (Ann Chi), 1938-
Neumann, B. H. (Bernhard Hermann), 1909-2002.