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Foundations of Algebraic Topology. Princeton University Press, Princeton, 1952.
MR 0050886
[4] O. HÁJEK:
Homological fixed point theorems. this journal, CMUC, 5, 1 (1964).
MR 0177409
[5] K. KURATOWSKI:
Topologie II. Monografie Matematyczne no. XXI, Warsaw - Wrocław, 1950.
Zbl 0041.09604