Oleg Derzhko, Johannes Richter, Olesia Krupnitska, and Taras Krokhmalskii, The square-kagome quantum Heisenberg antiferromagnet at high magnetic fields: the localized-magnon paradigm and beyond, Low Temp. Phys. 40, (2014) [Fiz. Nizk. Temp. 40, 662-670, (2014)] DOI: https://doi.org/10.1063/1.4881184 .