Barlier, 1971, J. geophys. Res., 76, 7797, 10.1029/JA076i031p07797
Bartels, 1932, Terr. Magn., 37, 1, 10.1029/TE037i001p00001
Brace, 1967, J. geophys. Res., 72, 265, 10.1029/JZ072i001p00265
Cook, 1969, Annls Géophys., 25, 451
Cox, 1970, J. geophys. Res., 75, 6271, 10.1029/JA075i031p06271
Duncan, 1969, J. atmos. terr. Phys., 31, 59, 10.1016/0021-9169(69)90081-6
Eccles, 1971, J. atmos. terr. Phys., 33, 1641, 10.1016/0021-9169(71)90081-X
Evans, 1967, Planet. Space Sci., 15, 1387, 10.1016/0032-0633(67)90112-2
Jacchia, 1966, Annls Géophys., 22, 75
Johnson, 1964, Electron Density Distribution in Ionosphere and Exosphere, 81
King, 1967, J. atmos. terr. Phys., 29, 1327, 10.1016/0021-9169(67)90222-X
Knudsen, 1968, J. geophys. Res., 73, 6275, 10.1029/JA073i019p06275
Kockarts, 1962, Annls Géophys., 18, 269
Krankowsky, 1938, J. geophys. Res., 73, 7291, 10.1029/JA073i023p07291
Legg, 1967, J. atmos. terr. Phys., 29, 1397, 10.1016/0021-9169(67)90231-0
Mayr, 1972, Planet. Space Sci., 20, 379, 10.1016/0032-0633(72)90036-0
Norton, 1968, J. geophys. Res., 73, 5798, 10.1029/JA073i017p05798
Rishbeth, 1961, J. atmos. terr. Phys., 20, 263, 10.1016/0021-9169(61)90205-7
Schunk, 1970, Planet. Space Sci., 18, 535, 10.1016/0032-0633(70)90130-3
Strobel, 1970, Planet. Space Sci., 18, 1181, 10.1016/0032-0633(70)90211-4
Taeusch, 1971, J. geophys. Res., 76, 8318, 10.1029/JA076i034p08318
Taeusch, 1973, J. geophys. Res.
Thomas, 1963, J. geophys. Res., 68, 2707, 10.1029/JZ068i009p02707
Thomas, 1968, J. atmos. terr. Phys., 30, 1429, 10.1016/S0021-9169(68)91294-4
Vasseur, 1970, J. atmos. terr. Phys., 32, 775, 10.1016/0021-9169(70)90028-0
Wu, 1972, J. atmos. terr. Phys., 34, 1635, 10.1016/0021-9169(72)90025-6
Yonezawa, 1971, J. atmos. terr. Phys., 33, 889, 10.1016/0021-9169(71)90089-4
Reference is also made to the following unpublished material:Torr D. G., Torr M. R. and Walker J. C. G. 1973 To be published.
Wiley, 1970, Air Force Weapons Laboratory, Tech. Dept. No. AFWL-TR-69-144
