Engelking, Ryszard (1989). 《General topology》. Sigma Series in Pure Mathematics (영어) 6 개정 완결판. Berlin: Heldermann Verlag. ISBN3-88538-006-4. MR1039321. Zbl0684.54001.
Stone, M.H. (1937). “Applications of the theory of Boolean rings to general topology”. 《Transactions of the American Mathematical Society》 (영어) 41 (3): 375–481. doi:10.2307/1989788. JSTOR1989788.
Stone, M.H. (1937). “Applications of the theory of Boolean rings to general topology”. 《Transactions of the American Mathematical Society》 (영어) 41 (3): 375–481. doi:10.2307/1989788. JSTOR1989788.
Engelking, Ryszard (1989). 《General topology》. Sigma Series in Pure Mathematics (영어) 6 개정 완결판. Berlin: Heldermann Verlag. ISBN3-88538-006-4. MR1039321. Zbl0684.54001.