Baltazar Mathias Keilhau; Balthazar Mathias Keilhau
* November 02, 1797 – January 01, 1858 †
geologist, professor
Norwegian geologist and professor (1797-1858)
https://www.wikidata.org/wiki/Q893022
https://en.wikipedia.org/wiki/Baltazar_Mathias_Keilhau [View]
Norway