半群 (Japanese Wikipedia)

Analysis of information sources in references of the Wikipedia article "半群" in Japanese language version.

refsWebsite

Global rank Japanese rank

1gap-system.org

low place

low place

549^th place

1,878^th place

1,151^st place

2,318^th place

1quasigroups.eu

low place

low place

gap-system.org

G. B. Preston (1990年). “Personal reminiscences of the early history of semigroups”. 2009年5月12日閲覧。

geocities.com

uk.geocities.com

An account of Suschkewitsch's paper by Christopher Hollings

quasigroups.eu

Dudek, W.A. (2001), “On some old problems in n-ary groups”, Quasigroups and Related Systems 8: 15–36

tripod.com

jeff560.tripod.com

Earliest Known Uses of Some of the Words of Mathematics