J.A. Hodges, P. Imbert, G. Jehanno, J.B. Marimon da Cunha, J.P. Sanchez. Moessbauer absorption in some high T$_c$ superconductors: $^{170}$Yb in YbBa$_2$Cu$_3$O$_{7-x},^{166}$Er in ErBa$_2$Cu$_3$O$_{7-x}$ and $^{57}$Fe in YBa$_2$Cu$_3$O$_{7-x}$.
International Conference on the Applications of the Moessbauer Effect Icame '87, Aug 1987, Melbourne, Australia. pp.1225-1226.
⟨in2p3-00017496⟩