Newton, George P.; Horowitz, Richard; Priester, Wolfgang (July 1965). "Atmospheric Density and Temperature Variations from the Explorer XVII Satellite and a Further Comparison with Satellite Drag". Planetary and Space Science. 13 (7): 599–616. Bibcode:1965P&SS...13..599N. doi:10.1016/0032-0633(65)90042-5.
Newton, George P.; Horowitz, Richard; Priester, Wolfgang (July 1965). "Atmospheric Density and Temperature Variations from the Explorer XVII Satellite and a Further Comparison with Satellite Drag". Planetary and Space Science. 13 (7): 599–616. Bibcode:1965P&SS...13..599N. doi:10.1016/0032-0633(65)90042-5.