Spin correlations and exchange in square-lattice frustrated ferromagnetsM. Skoulatos, J. P. Goff, C. Geibel, E. E. Kaul, R. Nath, N. Shannon, B. Schmidt, A. P. Murani, P. P. Deen, M. Enderle and A. R. WildesEPL, 88 5 (2009) 57005DOI: https://doi.org/10.1209/0295-5075/88/57005