Quasi-optical approach to reconstruction of plasma fluctuations using amplitude distribution of transmitted microwave beamE.D. Gospodchikov, D.I. Sobolev, T.A. Khusainov, A.A. Balakin and A.G. ShalashovEPJ Web Conf., 149 (2017) 03022DOI: https://doi.org/10.1051/epjconf/201714903022