1. The identity problem for graph products of groups;Baik;J. Algebra,1993
2. Generators of the second homotopy module of presentations arising from group constructions;Baik,1992
3. Unions of Cockcroft 2-complexes;Bogley,1994
4. Aspherical relative presentations;Bogley,1992
5. Calculating generators of π2;Bogley,1993