Rebane, J. K. Über die Darstellung universaler Algebren in kommutativen Halbgruppen. (Russian) Zbl 0166.27403 Sib. Mat. Zh. 7, 878-885 (1966). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 Document Keywords:general algebraic structures PDFBibTeX XMLCite \textit{J. K. Rebane}, Sib. Mat. Zh. 7, 878--885 (1966; Zbl 0166.27403)