David Berkoff (German Wikipedia)

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

refsWebsite

Global rank German rank

1swimmingworldmagazine.com

6,159^th place

low place

7^th place

19^th place

nytimes.com

The New York Times: Fastest Backstroker Loses a Revolution. Abgerufen am 1. Januar 2011.

swimmingworldmagazine.com

The History of the Underwater Dolphin Kick. In: Swimming World News. 29. Dezember 2018, abgerufen am 1. Juni 2021 (amerikanisches Englisch).