PROVERBIO, E.; QUESADA, V. Long term components in polar motion. Annals of Geophysics, [S. l.], v. 25, n. 1, p. 37–54, 1972. DOI: 10.4401/ag-5101. Disponível em: https://www.annalsofgeophysics.eu/index.php/annals/article/view/5101. Acesso em: 29 mar. 2024.