SUMARUK, T.; SUMARUK, P. Reflection of the solar activity Hale cycles on the geomagnetic field secular variations. Geofizicheskiy Zhurnal, [S. l.], v. 42, n. 5, p. 183–192, 2020. DOI: 10.24028/gzh.0203-3100.v42i5.2020.215081. Disponível em: http://journals.uran.ua/geofizicheskiy/article/view/215081. Acesso em: 30 nov. 2022.