Imhof, W.L. & Reagan, J.B. + McNeal, R.J. & Clark, David C books & textbook
SOURCE OF HIGH-ENERGY PROTONS TRAPPED ON LOW L SHELLS + IONIZATION AND EXCITATION OF NITROGEN BY PROTONS AND HYDROGEN ATOMS IN THE ENERGY RANGE 1-25 KEV (Pamphlet)
Imhof, W.L. & Reagan, J.B. + McNeal, R.J. & Clark, David C
J Geophysical Research /1969T Pamphlet
