"Md SAIDUZZAMAN,Khandaker Monower HOSSAIN,Nobuhiro KUMADA,Sayaka YANAGIDA,Takahiro TAKEI,Yuji HANADA,Masanori NAGAO,Masaki AZUMA","Hydrothermal synthesis and crystal structure of a mixed-valence pyrochlore-type strontium bismuthate, (Sr<sub>0.75</sub>Bi<sub>0.25</sub>)<sub>2</sub>Bi<sub>2</sub>O<sub>6.83</sub>",,"JOURNAL OF THE CERAMIC SOCIETY OF JAPAN",,"Volume 128","Issue 9","  660-663",2020,Sept.