Muralikrishna, P. y Abdu, M. A. (1992) «Nighttime F-region plasma structures observed by rocket-borne Langmuir and high frecuency capacitance probes from Natal, Brazil», Geofísica Internacional, 31(1), pp. 59–63. doi: 10.22201/igeof.00167169p.1992.31.1.1303.