TY  - BOOK
AU  - Steen, Lynn Arthur ,1941-
AU  - Seebach, J. Arthur
TI  - Counter examples in topology
SN  - 0387903127
AV  - QA611.3.S74 1978 
PB  - Springer-Verlag
KW  - Topological spaces
KW  - QA
N1  - Bibliography: p. 228-235
ER  -