SUMARUK, Y. P.; SUMARUK, T. Features of age variations of the geomagnetic field in the northern polar part of the Earth. Geofizicheskiy Zhurnal, [S. l.], v. 35, n. 2, p. 137–145, 2013. DOI: 10.24028/gzh.0203-3100.v35i2.2013.111357. Disponível em: http://journals.uran.ua/geofizicheskiy/article/view/111357. Acesso em: 19 aug. 2022.