This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Jerzy Perzanowski. en prof dr hab Jerzy Perzanowski pl prof dr hab Jerzy Perzanowski own Protofizyka Protofizyka Personality rights original upload log date username resolution size edit summary User Protofizyka Gb no en prof dr hab Jerzy Perzanowski pl prof dr hab Jerzy Perzanowski own Protofizyka Jerzy Perzanowski