The first detailed experimental investigation of the KMM + KMN Auger electron spectrum of Cu emitted in the EC decay of radioactive 65Zn in a solid state matrixA.Kh. Inoyatov, L.L. Perevoshchikov, A. Kovalík and D.V. FilosofovEur. Phys. J. D, 66 6 (2012) 150DOI: https://doi.org/10.1140/epjd/e2012-20698-y