1.
Shough M. Belgium in UFO Photographs, Volume 1 (1950-1988), FOTOCAT Report #7 by Vicente-Juan Ballester Olmos & Wim van Utrecht. JSE [Internet]. 2018Apr.17 [cited 2024Nov.21];32(1). Available from: https://journalofscientificexploration.org/index.php/jse/article/view/1265