Measuring effective radium concentration with large numbers of samples. Part II--general properties and

Frédéric Girault1, Frédéric Perrier

  • 1Équipe de Géomagnétisme, Institut de Physique du Globe de Paris, Sorbonne Paris Cité, University Paris Diderot, UMR 7154 CNRS, F-75005 Paris, France. girault@ipgp.fr

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