by William Swider
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On formulating a simple D-region model
Sunrise E-region enhancements from auror...
Composite PCA '69 study
Calculated and measured HF/VHF absorptio...
D-region ionization rates for the 2 to 5...
Ion composition measurements of the dist...
Nota sobre a theoria do movimento diurno
AstroCalc4R
Azimutes por circum-elongações em função...
An Account of the Operations Carried on ...
An Elementary Treatise on Spherical Astr...
An Elementary Treatise on Astronomy: Ada...