Reihe Springer ThesesAkira Miyazaki × Direct Measurement of the Hyperfine Structure Interval of Positronium Using High-Power Millimeter Wave Technology Akira MiyazakiSpringer TokyoSoftcover2016 Direct Measurement of the Hyperfine Structure Interval of Positronium Using High-Power Millimeter Wave Technology Akira MiyazakiSpringer TokyoHardcover2015 Direct Measurement of the Hyperfine Structure Interval of Positronium Using High-Power Millimeter Wave Technology Akira MiyazakiSpringer TokyoeBook2015