- ww-article-cache-1.s3.amazonaws.com en/Wieliczka
- julianwhite.uk wieliczka-world-war-two-photo/
- tiqets.com en/wieliczka-salt-mine-tickets-l146138/
- en.wikivoyage.org wiki/Wieliczka
- inyourpocket.com tarnow/Further-Afield/wwi-…
- timetravelturtle.com poland/visit-wieliczka-salt-…
- sztetl.org.pl en/towns/w/322-wieliczka/99-history…
- blogs.transparent.com polish/salt-mine-in-…