Saloman, E.
(2012),
Energy Levels and Observed Spectral Lines of Neutral and Singly Ionized Chromium, Cr I and Cr II, J. Phys. & Chem. Ref. Data (JPCRD), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.1063/1.4754694
(Accessed November 23, 2024)