Michael L. WageWilliam G. FleissnerG. M. Reed
This is the published version, also available here: http://www.dx.doi.org/10.1090/S0002-9904-1976-14150-X. First published in Bull. AMS. in 1976, published by the American Mathematical Society.
Nobuyuki KemotoKerry D. SmithPaul J. Szeptycki