(1)
V. Gnezdilov, W. Queen, X. Mo, M. Pashchenko, S. Gnatchenko, S. Zvyagin, P. Lemmens, Yu. Pashkevich, V. Bedarev, and S.-J. Hwu, Structural phase transition in two-dimensional tetramer-cuprate Na5RbCu4(AsO4)4Cl2, Low Temp. Phys. 33, (2007) [Fiz. Nizk. Temp. 33, 897-901, (2007)] DOI: https://doi.org/10.1063/1.2747045.