Effect of long-range 1/r interactions on the Landau damping in a Bose-Fermi mixture S. Mostafa Moniri, Heshmatollah Yavari and Elnaz Darsheshdar Eur. Phys. J. Plus, 131 4 (2016) 122 Published online: 29 April 2016 DOI: 10.1140/epjp/i2016-16122-7