Inosov, D. S., Leineweber, A., Yang, X. P., Park, J. T., Christensen, N. B., Dinnebier, R. E., et al. (2009). Suppression of the structural phase transition and lattice softening in slightly underdoped Ba1-xKxFe2As2 with electronic phase separation. Physical Review B, 79(22): 224503.