QED background against atomic neutrino process with initial spatial phaseMinoru Tanaka, Koji Tsumura, Noboru Sasao, Satoshi Uetake and Motohiko YoshimuraEur. Phys. J. Plus, 135 3 (2020) 283DOI: https://doi.org/10.1140/epjp/s13360-020-00290-2