V. N. Epov

Determination of 226Ra in sediments by ICP-MS: A comparative study of three sample preparation approaches

R. D. Evans, D. Brownell, D. Larivière, 2007 .

Direct determination of 226Ra in environmental matrices using collision cell inductively coupled plasma mass-spectrometry

R. D. Evans, D. Larivière, R. Cornett, 2003 .