Manuel Clementino, Maria; Hofmann, Dirk; Montoli, Andrea Covering morphisms in categories of relational algebras. (English) Zbl 1306.18002 Appl. Categ. Struct. 22, No. 5-6, 767-788 (2014). Reviewer: Hans Peter Künzi (Rondebosch) MSC: 18B30 54D05 54A20 14E20 54C10 PDFBibTeX XMLCite \textit{M. Manuel Clementino} et al., Appl. Categ. Struct. 22, No. 5--6, 767--788 (2014; Zbl 1306.18002) Full Text: DOI Link
Boxall, Gareth; Holgate, David Connected and disconnected maps. (English) Zbl 1228.18002 Appl. Categ. Struct. 19, No. 1, 301-319 (2011). Reviewer: Sergejs Solovjovs (Toronto) MSC: 18A32 18A20 18B30 54C10 54D05 PDFBibTeX XMLCite \textit{G. Boxall} and \textit{D. Holgate}, Appl. Categ. Struct. 19, No. 1, 301--319 (2011; Zbl 1228.18002) Full Text: DOI