Rabsahl, Aileen. “How Human Space Travel Influences Space Tourism: A Critical Review about Astronautical Space Travel - Beginning of a New Era by Prof. Dr. Rupert Gerzer”. Tér - Gazdaság - Ember Journal of Region, Society and Economy, vol. 13, no. 1, July 2025, https://tge.sze.hu/tge/article/view/437.