Abstracts : 1969 Particle Accelerator Conference : accelerator engineering and technology, March 5-7, 1969, Shoreham Hotel, Washington, D.C. / sponsored by American Physical Society, Institute of Electrical and Electronics Engineers, Nuclear Science Group, National Bureau of Standards, Center for Radiation Research, National Science Foundation, U.S. Atomic Energy Commission Q Science
An atlas of oblique-incidence high-frequency backscatter ionograms of the midlatitutde ionosphere / Robert D. Hunsucker Q Science
Ground wave propagation in an ionized atmosphere with arbitrary variation of the conductivity with altitude / J. Ralph Johler Q Science
Long-term verification trends of forecasts by the National Weather Service / Duane S. Cooley and Robert G. Derouin Q Science
National Geodetic Survey data : availability, explanation, and application / Joseph F. Dracup Q Science
Contributions to the study of coal; proximate analyses and screen tests of coal mine screenings produced in Illinois Q Science
Briquetting Illinois coals without a binder by impact; second report of a laboratory investigation Q Science
Contributions to the study of coal; mineral matter of no. 6 bed coal at West Frankfort, Franklin County, Illinois Q Science
Contributions to the study of coal: A proposed simplification of the Parr unit coal formula Q Science
