Guo, J., Duarte, M. J., Zhang, Y., Bachmaier, A., Gammer, C., Dehm, G., et al. (2019). Oxygen-mediated deformation and grain refinement in Cu–Fe nanocrystalline alloys. Acta Materialia, 166, 281-293. doi:10.1016/j.actamat.2018.12.040.