Hilton, Peter J. Note on free and direct products in general categories. (English) Zbl 0109.25103 Bull. Soc. Math. Belg. 13, 38-49 (1961). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 5 Documents Keywords:general algebraic structures PDFBibTeX XMLCite \textit{P. J. Hilton}, Bull. Soc. Math. Belg. 13, 38--49 (1961; Zbl 0109.25103)