en.wikipedia.org
en.wikipedia.org
britannica.com
mathshistory.st-andrews.ac.uk
MacTutor History of Mathematics Archive
https://mathshistory.st-andrews.ac.uk › Biographies › Hevelius_Johannes
worldhistory.org
World History Encyclopedia
https://www.worldhistory.org › Johannes_Hevelius
encyclopedia.com
encyclopedia.com
www2.hao.ucar.edu
High Altitude Observatory
https://www2.hao.ucar.edu › education › scientists › johannes-hevelius-1611-1687
ancient-origins.net
polishhistory.pl
link.springer.com
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