Birkhoff, Garrett On the combination of subalgebras. (English) Zbl 0007.39502 Proc. Camb. Philos. Soc. 29, 441-464 (1933). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 5 ReviewsCited in 19 Documents Keywords:algebra, number theory PDF BibTeX XML Cite \textit{G. Birkhoff}, Proc. Camb. Philos. Soc. 29, 441--464 (1933; Zbl 0007.39502) OpenURL