1. On manifolds with involution;Boardman, J. M.;Bull. Amer. Math. Soc.,1967
2. P. E. Conner, Lectures on Boardman’s theory, Mimeographed, University of Virginia, Charlottesville, Va., 1966.
3. Ergebnisse der Mathematik und ihrer Grenzgebiete, (N.F.), Band 33;Conner, P. E.,1964
4. Fibring within a cobordism class;Conner, P. E.;Michigan Math. J.,1965