Positron-K-Electron Annihilation in 180mTa Atoms Varzar, S. M. ; Zheltonozhskaya, M. V. ; Zheltonozhsky, V. A. ; Lykova, E. N. ; Sadovnikov, L. V. ; Chernyaev, A. P. Abstract Publication: Bulletin of the Russian Academy of Sciences, Physics Pub Date: June 2018 DOI: 10.3103/S1062873818060333 Bibcode: 2018BRASP..82..712V