1. The references below are those cited in the text. In many cases these represent only samples of the work by the author or authors on the topics. A comprehensive list of references up to the mid 1980s can be found at the end of [32]
2. On the non-existence of elements of Hopf invariant one;Adams;Ann. of Math.,1960
3. The sphere, considered as an H-space mod p;Adams;Quart. J. Math. Oxford Ser.,1961
4. Finite H-spaces and algebras over the Steenrod algebra;Adams;Ann. of Math.,1980
5. On the number of multiplications of an H-space;Arkowitz;Topology,1963