Pulido, A. M. (1997). The ionospheric F2 region winter anomaly and its dependence on solar activity in the northern and southern hemispheres. Universidad Nacional Autónoma de México.
Cita Chicago Style (17a ed.)Pulido, Ana Martínez. The Ionospheric F2 Region Winter Anomaly and Its Dependence on Solar Activity in the Northern and Southern Hemispheres. Universidad Nacional Autónoma de México, 1997.
Cita MLA (9a ed.)Pulido, Ana Martínez. The Ionospheric F2 Region Winter Anomaly and Its Dependence on Solar Activity in the Northern and Southern Hemispheres. Universidad Nacional Autónoma de México, 1997.
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