Ehresmann, Charles Structures quotient. (English) Zbl 0128.02102 Comment. Math. Helv. 38, 219-283 (1964). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 3 ReviewsCited in 9 Documents Keywords:general algebraic structures PDF BibTeX XML Cite \textit{C. Ehresmann}, Comment. Math. Helv. 38, 219--283 (1964; Zbl 0128.02102) Full Text: DOI EuDML