Recent trends and explanation for airborne 137Cs activity level increases in FranceO. Masson, D. Piga, G. Le Roux, J. Mary, A. de Vismes, R. Gurriaran, Ph. Renaud, L. Saey and P. PaulatRadioprotection, 44 5 (2009) 327-332DOI: https://doi.org/10.1051/radiopro/20095064