Mumtaz, M., & Khan, N. A. (2009). Homogeneous distribution of carriers in the conducting planes by Zn substitution at Cu sites in Cu_0.5Tl_0.5Ba₂Ca₃Cu₄O_12-d superconductors. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, 36(2), 196–201. https://doi.org/10.1063/1.3319351