1. Some open questions in infinite-dimensional topology;Anderson;Proc. 3rd Prague Topology Symp.,1971
2. Introduction to Knot Theory;Crowell,1963
3. Open problems in infinite-dimensional topology;Geoghegan;Topology Proc.,1979
4. Corrections and extensions of two papers about infinite-dimensional manifolds;Henderson;Gen. Topology Appl.,1971
5. Theory of Retracts;Hu,1965