"거리화 가능 공간"의 두 판 사이의 차이

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* {{서적 인용|저자=박대희|공저자=안승호|제목=위상수학|판=3판|출판사=경문사|날짜=2013|isbn=978-89-6105-668-7|url=http://kyungmoon.com/shop_product/shop_pdt_view.php?p_idx=6600|언어=ko}}
* {{서적 인용|저자=김승욱|제목=위상수학: 집합론을 중심으로|출판사=경문사|판=2판|날짜=2004|url=http://www.kyungmoon.com/shop_product/shop_pdt_view.php?p_idx=2604|isbn=89-7282-587-5|언어=ko}}
* {{서적 인용
* {{서적 인용|이름=James R.|성=Munkres|제목=Topology|isbn=978-013181629-9|판=2판|출판사=Prentice Hall|날짜=2000|url=http://www.pearsonhighered.com/bookseller/product/Topology/9780131816299.page|zbl=0951.54001|mr=0464128 |언어=en}}
|url=http://www.pearsonhighered.com/bookseller/product/Topology/9780131816299.page
|이름=James R.
|성=Munkres
|저자링크=제임스 멍크레스
|제목=Topology
|언어=en
|판=2
|출판사=Prentice Hall
|연도=2000
|isbn=978-0-13-181629-9
|zbl=0951.54001
|mr=0464128
}}
* {{서적 인용|장=A survey of metrization theory|제목=Aspects of topology: in memory of Hugh Dowker 1912–1982|editor1-first= I. M.|editor1-last=James |editor2-first=E. H. |editor2-last=Kronheimer|이름=Jun-iti|성=Nagata|저자링크=나가타 준이치|doi=10.1017/CBO9781107359925.005|isbn=978-052127815-7|날짜=1985|출판사=Cambridge University Press|쪽=113–126|언어=en}}
* {{서적 인용|장=Some results in metrization theory, 1950–1972|제목=Topology conference, Virginia Polytechnic Institute and State University, March 22–24, 1973|editor1-first=Raymond F., Jr. |editor1-last=Dickman |editor2-first=Peter|editor2-last=Fletcher|쪽=120–136|총서= Lecture Notes in Mathematics |권=375|이름=R. E.|성=Hodel|doi=10.1007/BFb0064018|날짜=1974|isbn=978-3-540-06684-2|출판사=Springer-Verlag|issn=0075-8434|언어=en}}