Atomic data from the IRON Project - LVI. Electron excitation of Be-like Fe XXIII for the n = 2, 3, 4 configurationsM. C. Chidichimo, G. Del Zanna, H. E. Mason, N. R. Badnell, J. A. Tully and K. A. BerringtonA&A, 430 1 (2005) 331-341DOI: https://doi.org/10.1051/0004-6361:20041358
