Approaches to 90Sr determination in marine environmental materials J. La Rosa, B. Oregioni, L. Liong Wee Kwong, S.-H. Lee, J. Gastaud, I. Levy and P. Povinec Radioprotection, 37 C1 (2002) C1-921-C1-925 Published online: 25 March 2010 DOI: 10.1051/radiopro/2002225