Proceedings of the XIV IAGA Workshop on Geomagnetic Observatory Instruments, Data Acquisition, and Processing - Preface. - Pieter B. Kotzé (Data Sci. J., 2011)

Polynomial Modelling of Southern African Secular Variation Observations Since 2005. - Pieter B. Kotzé; Monika Korte; Mioara Mandea (Data Sci. J., 2011)

An Investigation into the Use of Satellite Data to Develop a Geomagnetic Secular Variation Model over Southern Africa. - Emmanuel Nahayo; Pieter B. Kotzé; M. J. Alport (Data Sci. J., 2011)