Coupled magnetic interactions and the Ising-like model for spin crossover in binuclear compounds J. Pavlik, W. Nicolazzi, G. Molnár, R. Boča and A. Bousseksou Eur. Phys. J. B, 86 6 (2013) 292 Published online: 26 June 2013 DOI: 10.1140/epjb/e2013-30613-7