How to Make the Citation of this Document using the INPE Standard (BibINPE Format)
ECHER, E.; TSURUTANI, B. T.; GONZALEZ, W. D. Extremely low geomagnetic activity during the recent deep solar cycle minimum. Proceedings of the International Astronomical Union, v. 7, n. 286, p. 200-209, July 2012. DOI: <10.1017/S174392131200484X>. Available from: <http://doi.org/10.1017/S174392131200484X>.
How to Make the In-Text Citation (by author/year)
... as proposed by Echer, Tsurutani and Gonzalez (2012).
... may be found in the literature (ECHER; TSURUTANI; GONZALEZ, 2012).