4 (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "4" in German language version.

Last modified: 15:17:00, 14 December 2025 (UTC)

Ref.Un. Ref.Website

Global rank German rank

2,203^rd place

480^th place

ethz.ch (Global: 2,203^rd place; German: 480^th place)

Herbert Bruderer: Zeitrechnung. Bodenseeverlag Bruderer, Rohrschach, 2011