Okulov, V., Arkhipov, V., Govorkova, E., Korolev, A. V., Okulova, K. A., Shreder, E. I., Marchenkov, V. V., & Weber, H. W. (2007). Experimental validation of the anomalies in the electron density of states in semiconductor iron-vanadium-aluminum alloys. Journal of Low Temperature Physics, 33(8), 692–698. https://doi.org/10.1063/1.2746843