1. Bredon, G. E.: Introduction to Compact Transformation Groups, New York-London: Academic Press, 1972.
2. Brown, R. F.: The Lefschetz Fixed Point Theorem, Glenview, Illinois: Scott, Forseman and Company, 1971.
3. Dold, A.: Fixed Point Index and Fixed Point Theorem for Euclidean Neighborhood Retracts, Topology 4 (1965), 1?8.
4. ?: Lectures on Algebraic Topology, Berlin-Heidelberg-New York: Springer-Verlag, second edition, 1980.
5. Hu, Sze-Tsen: Theory of Retracts, Detroit: Wayne State University Press, 1965.