Klimin, S. A., & Peschanskii, A. V. (2021). Optical spectroscopy study of KDy(WO₄)₂: Crystal-field levels of Dy³⁺ and the Jahn–Teller transition. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, 47(11), 1061–1071. https://doi.org/10.1063/10.0006579