1971 · National Bureau of Standards, Washington, DC (United States), D. Wagman, et al. · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 52
1973 · National Bureau of Standards, Washington, DC (United States), R. Schumm, et al. · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 15
1977 · National Bureau of Standards, Washington, D.C. (USA), D. Wagman, et al. · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 11