Microwave measurements of the in-plane and c -axis conductivity in HgBa2 CuO4+δ: Discriminating between superconducting fluctuations and pseudogap effects - M.S. Grbić; N. Baričić; A. Dulčić; I. Kupčić; Y. Li; X. Zhao; G. Yu; M. Dressel; M. Greven; M. Požek (Physical Review B - Condensed Matter and Materials Physics, 2009)