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| | Filtered spaces admitting spectral sequence operations., Lewis Shilane |
 | | [3] William M. Singer, Steenrod squares in spectral sequences, I, II, unpublished notes, Dept. of Mathematics, Boston College, Chestnut Hill, Mass. |
 | | [6] Norman E. Steenrod, A convenient category of topological spaces, Michigan J. Math., 14 (1967), 133-152. |
 | | [7] Norman E. Steenrod, Milgram's classifying space of a topological group, Topology, 7 (1968), 349-368. |
| projecteuclid.org /Dienst/UI/1.0/Summarize/euclid.pjm/1102867739 (170 words) |
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