Karl Koopman (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Karl Koopman" in English language version.

refsWebsite

Global rank English rank

3,441^st place

1,950^th place

low place

low place

anb.org

"Koopman, Karl". American National Biography. Oxford University Press. Subscription needed.

wikimedia.org

species.wikimedia.org

Beolens B, Watkins M, Grayson M (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN 978-1-4214-0135-5. (Koopman, p. 145).