共 5 条
[1]
ABNORMAL IONIZATION IN THE LOWER IONOSPHERE ASSOCIATED WITH COSMIC-RAY FLUX ENHANCEMENTS
[J].
PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS,
1959, 47 (02)
:255-266
[4]
WILSON BG, 1959, CAN J PHYS, V38, P328
[5]
WINCKLER JR, 1959, COMMUNICATION