Publications on Algebraic Topology:

• Homotopical Nilpotence of S³, Proc. Amer. Math. Soc., 15 (1964), pp. 681-682.
  
• Higher order Whitehead products, Toplogy, Vol. 3 (1962), pp. 123-135.
  
• Spaces with vanishing Whitehead products, Quart. J. Math. (Oxford) 16 (1965), pp. 77-85.
  
• A generalization of the Hilton-Milnor theorem, Bull. Amer. Math. Soc., 71 (1965), pp. 357-359.
  
• On the Homotopy Groups of Wedges of Spheres, Amer. J. Math., 87 (1965), pp. 297-314.
  
• The Homotopy Groups of Wedges of Suspensions, Amer. J. Math., 88 (1966), pp. 655-663.
  
• Higher order Whitehead products and Postnikov systems, Ill. J. Math., 11 (1967), pp. 414-416.
  
• Higher product operations, Proceedings of a Conference in Algebraic Topology, University of Illinois at Chicago Circle, 1968, pp. 265-275.
  
• Higher products, Trans. Amer. Math. Soc., 148 (1970), pp. 315-345.
  
• Principal fibrations, Proceedings Adv. Study Inst. Alg. Top., Aarhus, Denmark, 1970.
  
• On the commutativity of homotopy groups, Ind. Univ. Math. J., 20 (1970), pp. 113-114
  
• Homomorphisms of principal fibrations, Applications to classification, induced fibrations, and the extension problem, Ill. J. Math., 16 (1972), pp. 41-60.
  
• H-fibrations, Quart. J. Math. (Oxford), 2 (1971), pp. 23-31.
  
• The universal H-space of a monoid, Conference on H-spaces, Neuchatel, (1970). Lecture notes in mathematics 196, Springer-Verlag, pp. 63-67
  
• On cohomological realization, (with Peter Hoffman), Quart. J. Math. (Oxford) (2), 24 (1973), pp. 251-255.
  
• The slash product in homotopy theory, (with Keith Hardie), Proc. London Math. Soc. (3) 34 (1977), pp. 505-519.