1. J. Beringer et al. (Particle Data Group), Phys. Rev. D 86, 010001 (2012).
2. Paul Sherrer Institut.
https://www.psi.ch
.
3. E. Kim, Mesic Atoms and Nuclear Structure (Atomizdat, Moscow, 1975; North-Holland, Amsterdam, 1971).
4. V. S. Evseev, T. N. Mamedov, and V. S. Roganov, Negative Muons in Matter (Energoatomizdat, Moscow, 1985) [in Russian].
5. V. V. Balashov, G. Ya. Korenman, and R. A. Eramzhyan, Meson Capture by Atomic Nuclei (Atomizdat, Moscow, 1978) [in Russian].