S. Al and C. Kurkcu, Hydrogen storage properties, structural analysis, elastic and electronic properties of K₂PdH₄ , Low Temp. Phys. 47, 1033–1036, (2021) [Fiz. Nizk. Temp. 47, 1131-1134, (2021)] DOI: https://doi.org/10.1063/10.0007077.