Gianibelli, J. C., Köhn, J. y Ghidella, M. E. (2003) «Testing Geomagnetic Reference Field models for 1990-2000 with data from the Trelew Geomagnetic Observatory, Argentina», Geofísica Internacional, 42(4), pp. 635–639. doi: 10.22201/igeof.00167169p.2003.42.4.317.