Article Håkansson, Håkan (2012)
Alchemy of the Ancient Goths: Johannes Bureus' Search for the Lost Wisdom of Scandinavia. Early Science and Medicine: A Journal for the Study of Science, Technology and Medicine in the Pre-modern Period (pp. 500-522). (/isis/citation/CBB001252160/) unapi

Article Ordway, Frederick I., III (1987)
Pioneering commercial rocketry in the United States of America: Thiokol's reaction motors division, 1958-1972. Part 3: RMD operational history. Part 4: RMD project history. Journal of the British Interplanetary Society (p. 389). (/isis/citation/CBB000059752/) unapi