1.

電子ブック
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1. Set Theory : With an Introduction to Real Point Sets
by Abhijit Dasgupta
出版情報: New York, NY : Springer New York : Imprint: Birkhäuser, 2014
オンライン: http://dx.doi.org/10.1007/978-1-4614-8854-5
2.

電子ブック
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2. Applications of Sheaves : Proceedings of the Research Symposium on Applications of Sheaf Theory to Logic, Algebra and Analysis, Durham, July 9-21, 1977. 1st ed. 1979
edited by M. P. Fourman, C. J. Mulvey, D. S. Scott
出版情報: Berlin, Heidelberg : Springer Berlin Heidelberg : Imprint: Springer, 1979
シリーズ名: Lecture Notes in Mathematics ; 753
オンライン: https://doi.org/10.1007/BFb0061811