Atomic data from the IRON Project - XXXVI. Electron excitation of Be-like Fe xxiii between and M. C. Chidichimo, V. Zeman, J. A. Tully and K. A. BerringtonAstron. Astrophys. Suppl. Ser., 137 1 (1999) 175-184DOI: https://doi.org/10.1051/aas:1999430