J. Argyriades, R. Arnold, C. Augier, J. Baker, A.S. Barabash, A. Basharina-Freshville, M. Bongrand, C. Bourgeois, D. Breton, M. Briere et al.: Results of the BiPo-1 prototype for radiopurity measurements for the SuperNEMO double beta decay source foils. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 622(1), 120-128 (2010). doi:10.1016/j.nima.2010.07.037