Vladimir Gnezdilov, Peter Lemmens, Dirk Wulferding, Atsushi Kitada, and Hiroshi Kageyama, Magnetic and lattice excitations in the quasi-2D quantum spin compound (CuCl)LaNb₂O₇, Low Temp. Phys. 47, 928–936, (2021) [Fiz. Nizk. Temp. 47, 1011-1021, (2021)] DOI: https://doi.org/10.1063/10.0006564.