Hansen, Martin, Matti Nelleman Petersen, Thomas F. Kokfelt, and Bo Møller Stensgaard. “AFieldWork – an Android App for Offline Recording of Geological Information and Data Display”. GEUS Bulletin 35 (July 15, 2016): 99–102. Accessed May 25, 2022. https://geusbulletin.org/index.php/geusb/article/view/4949.