@BOOK{ Book!D - 100998639,
AUTHOR = "/ Lynn A. Steen, J. Arthur Seebach, Jr",
TITLE = "Counterexamples in topology",
LIBRARY= "كتابخانه پردیس علوم (دانشگاه تهران)",
SUBJECT = "Topological spaces",
URL = "/book/100998639/Counterexamples-in-topology/"}