Solar cycle and seasonal variations in the equatorial ionospheric F-region

Bhargava, 1962, 55, 330 Bhargava, 1964, Indian J. Met. Geophys., 15, 67 Bhargava, 1964 King, 1961, J. Geophys. Res., 66, 4149, 10.1029/JZ066i012p04149 Piggott, 1960, 139 Rishbeth, 1961, J. Atmosph. Terr. Phys., 20, 263, 10.1016/0021-9169(61)90205-7 Ross, 1962, 84 Schmerling, 1959, J. Atmosph. Terr. Phys., 14, 249, 10.1016/0021-9169(59)90037-6 Schmerling, 1960, J. Geophys. Res., 65, 1072, 10.1029/JZ065i003p01072 Wright, 1954, J. Atmosph. Terr. Phys., 5, 290, 10.1016/0021-9169(54)90048-3 Wright, 1960, J. Geophys. Res., 65, 185, 10.1029/JZ065i001p00185 Wright, 1962, Nature, Lond., 194, 461, 10.1038/194461a0