Ranta, Aarne Constructing possible worlds. (English) Zbl 0838.03046 Theoria 57, No. 1-2, 77-100 (1991). MSC: 03F50 PDFBibTeX XMLCite \textit{A. Ranta}, Theoria 57, No. 1--2, 77--100 (1991; Zbl 0838.03046) Full Text: DOI
Horváth, E.; Puczyłowski, E. R. Some remarks on simple rings. (English) Zbl 0725.16007 Boll. Unione Mat. Ital., VII. Ser., A 5, No. 1, 83-87 (1991). Reviewer: R.Wiegandt (Budapest) MSC: 16D60 16N60 PDFBibTeX XMLCite \textit{E. Horváth} and \textit{E. R. Puczyłowski}, Boll. Unione Mat. Ital., VII. Ser., A 5, No. 1, 83--87 (1991; Zbl 0725.16007)
Wille, Rudolf Tensor products of complete lattices as closure systems. (English) Zbl 0736.06011 General algebra, Proc. Conf., Vienna/Austria 1990, Contrib. Gen. Algebra 7, 381-386 (1991). MSC: 06B23 06A15 PDFBibTeX XMLCite \textit{R. Wille}, Contrib. Gen. Algebra None, 381--386 (1991; Zbl 0736.06011)