NORDLUNG, Christer. An anonymous reformer of mineralogy: Axel F. Cronstedt at the swedish bureau of mines [online]. 2022-12-01 [cit. 2024-12-22]. Dostupné online.
jergym.cz
canov.jergym.cz
Axel Fredrik Cronstedt, (1722-1765). canov.jergym.cz [online]. [cit. 2016-09-06]. Dostupné online.