High-resolution mass spectrometric study of pure helium droplets, and droplets doped with krypton H. Schöbel, P. Bartl, C. Leidlmair, S. Denifl, O. Echt, T.D. Märk and P. Scheier Eur. Phys. J. D, 63 2 (2011) 209-214 Published online: 17 May 2011 DOI: 10.1140/epjd/e2011-10619-1