How to Make the Citation of this Document using the INPE Standard (BibINPE Format)
ECHER, E.; GONZALEZ, W. D.; TSURUTANI, B. T. Statistical studies of geomagnetic storms with peak Dst < -50 nT from 1957 to 2008. Journal of Atmospheric and Solar-Terrestrial Physics, v. 73, n. 11-12, p. 1454-1459, july 2011. DOI: <10.1016/j.jastp.2011.04.021>. Available from: <http://doi.org/10.1016/j.jastp.2011.04.021>.
How to Make the In-Text Citation (by author/year)
... as proposed by Echer, Gonzalez and Tsurutani (2011).
... may be found in the literature (ECHER; GONZALEZ; TSURUTANI, 2011).