1644 in science (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "1644 in science" in English language version.

refsWebsite

Global rank English rank

2books.google.com

3^rd place

3^rd place

2britannica.com

40^th place

58^th place

books.google.com

Sandifer, C. Edward (2007). How Euler Did It. MAA. p. 205. ISBN 9780883855638.
Vaquero, J. M.; Vázquez, M. (2009). The Sun Recorded Through History. Springer Science & Business Media. p. 236. ISBN 9780387927909.

britannica.com

"Jan Baptista van Helmont - Belgian scientist". Encyclopedia Britannica. Retrieved 3 April 2018.
"Ole Rømer - Danish astronomer". Encyclopedia Britannica. Retrieved 3 April 2018.