TY - GEN AU - Sojka, J.J. AU - Schunk, R.W. TI - Theoretical study of the global F-region for june solstice,solar maximum,and law magnetic activity KW - PROCESSO IONOSFERICO KW - MODELO IONOSFERICO KW - REGIAO-F KW - 551.510.535 KW - med KW - fre ER -