Lattice anomalies in the FeAs4 tetrahedra of the NdFeAsO0.85 superconductor that disappear at TcM. Calamiotou, I. Margiolaki, A. Gantis, E. Siranidi, Z. A. Ren, Z. X. Zhao and E. LiarokapisEPL, 91 5 (2010) 57005DOI: https://doi.org/10.1209/0295-5075/91/57005