HỒNG, P. T. T.; MAZAUDIER CHRISTINE, A.-.; MINH, L. H. Ionospheric conductivity from the ionograms recorded at Phu Thuy, Hanoi. Vietnam Journal of Earth Sciences, [S. l.], v. 34, n. 4, p. 524–534, 2013. DOI: 10.15625/0866-7187/34/4/2812. Disponível em: https://vjs.ac.vn/index.php/jse/article/view/2812. Acesso em: 25 apr. 2024.