González-Esparza, J.A. y Balogh, A. 2001. The Bn problem: Determination of local magnetic parameters of interplanetary shocks from in situ IMF data. Geofísica Internacional. 40, 1 (ene. 2001), 53–63. DOI:https://doi.org/10.22201/igeof.00167169p.2001.40.1.420.