Serghiou, G., Ji, G., Odling, N., Reichmann, H.-J., Frost, D. J., Wright, J. P. (2015): Synthesis and high-resolution study distinguishing between very similar interstitial iron nitride structures. - High Pressure Research, 35, 1, 28-36.https://doi.org/10.1080/08957959.2014.996561