Coherent control of electron-nuclear states of rare-earth ions in crystals using radio-frequency and microwave radiationM. R. Gafurov, G.V. Mamin, E.I. Baibekov, I. N. Kurkin, F.F. Murzakhanov and S.B. OrlinskiiEPJ Web Conf., 195 (2018) 06003DOI: https://doi.org/10.1051/epjconf/201819506003