共 9 条
[1]
BERKNER LV, 1937, ASS TERR MAG ELEC B, V10, P340
[3]
Dellinger J., 1939, ELECTR ENG, V58, P803, DOI [10.1109/EE.1939.6431636, DOI 10.1109/EE.1939.6431636]
[4]
Note on a multifrequency automatic recorder of ionosphere heights
[J].
PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS,
1934, 22 (02)
:236-246
[5]
Preliminary note on an automatic recorder giving a continuous height record of the Kennelly-Heaviside layer
[J].
PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS,
1932, 20 (03)
:0540-0547
[7]
GILLILAND TR, 1933, BS J RES, V11, P561
[8]
GILLILAND TR, 1931, BS J RES, V7, P783