How to Make the Citation of this Document using the INPE Standard (BibINPE Format)
SAHAI, Y.; FAGUNDES, P. R.; BECKER GUEDES, F.; ABALDE, J. R.; CROWLEY, G.; PI, X.; IGARASHI, K.; AMARANTE, G. M.; PIMENTA, A. A.; BITTENCOURT, J. A. Longitudinal differences observed in the ionospheric F-region during the major geomagnetic storm of 31 March 2001. Annales Geophysicae, v. 22, n. 9, p. 3221-3229, 2004. (INPE-11754-PRE/7113). Available from: <http://urlib.net/ibi/6qtX3pFwXQZsFDuKxG/EodUr>.
How to Make the In-Text Citation (by author/year)
... as proposed by Sahai et al. (2004).
... may be found in the literature (SAHAI et al., 2004).