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  Pratt, D.K.; Zhao, Y.; Kimber, S.A.J.; Hiess, A.; Argyriou, D.N.; Broholm, C.; Kreyssig, A.; Nandi, S.; Bud'ko, S.L.; Ni, N.; Canfield, P.C.; McQueeney, R.J.; Goldman, A.I.: Suppression of antiferromagnetic spin fluctuations in the collapsed phase of CaFe₂As₂. Physical Review B 79 (2009), p. 060510(R)/1-4

10.1103/PhysRevB.79.060510