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The late 1960s secular variation impulse, the eleven year magnetic variation and the electrical conductivity of the deep mantle |
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| Authors: | Joël Ducruix Vincent Courtillot Jean-Louis Le Mouël |
| Institution: | Institut de Physique du Globe, UniversitéP. et M. Curie and Departement des Sciences de la Terre, UniversitéParis VII, Place Jussieu, 75230, Paris, Cedex 05, France |
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