Küpper, Thomas, i Travis Heggie. „Are Cruise Ship Trips to Antarctica Still Acceptable? A Careful Consideration”. Health Promotion & Physical Activity 33, no. 4 (kwiecień 29, 2026): 43–50. Udostępniono listopad 12, 2026. https://journals.anstar.edu.pl/index.php/hppa/article/view/710.