designers and engineers, computer specialists, and other experts, the W47 Polaris warhead was created. Listof all US Nuclear Bombs. Nuclear Weapons Archive
26 of Monograph (American Society of Civil Engineers. Technical Council on Lifeline Earthquake Engineering), American Society of Civil Engineers Technical
international experience By American Society of Civil Engineers. Task Committee on Pumped Storage General Layout of Drakensberg Pumped Storage Scheme (PDF)