Shinziro Mori "Über den Durchschnitt $\cap_{\alpha}\mathfrak{a}_{\alpha}$ der Ideale $\mathfrak{a}_{\alpha}$," Memoirs of the College of Science, University of Kyoto. Series A: Mathematics, Mem. College Sci. Univ. Kyoto Ser. A Math. 29(2), 79-88, (1955)