The Classification of Simply Connected H-Spaces with Three Cells I. A. Zabrodsky (1972) Mathematica Scandinavica
The ...-Module Structure for the Cohomology of Two-Stage Spaces. Erik K. Pedersen, Leif Kristensen (1972) Mathematica Scandinavica
The ...(p) Cohomology of Some k Stage Postnikov Systems David Kraines (1973) Commentarii mathematici Helvetici