KOWALSKI, Chatr Panithipongwut. 2021. “Retaining the High-Temperature Phases of Rb3H(SO4)2 and Rb5H3(SO4)4 at Room Temperature”. Journal of Metals, Materials and Minerals 31 (4). Bangkok, Thailand:116-22. http://jmmm.material.chula.ac.th/index.php/jmmm/article/view/1235.