PHAM THI THU, Hong et al. Occurrence rate of equatorial Spread F and GPS ROTI in the ionospheric anomaly region over Vietnam. <b>Vietnam Journal of Earth Sciences</b>, <i>[S. l.]</i>, v. 46, n. 4, p. 553–569, 2024. DOI: 10.15625/2615-9783/21368. Disponível em: http://vjes.vast.vn/jse/article/view/21368. Acesso em: 8 nov. 2025.