Microwave surface resistance of pristine and neutron-irradiated MgB2 samples in magnetic field M. Bonura, A. Agliolo Gallitto, M. Li Vigni, C. Ferdeghini and C. Tarantini Eur. Phys. J. B, 63 2 (2008) 165-177 Published online: 20 June 2008 DOI: 10.1140/epjb/e2008-00231-9