Citation: Filatov, Stanislav K.; Biryukov, Yaroslav P.; Bubnova, Rimma S.; Shablinskii, Andrey P. (2019). The novel borate Lu~5~Ba~6~B~9~O~27~ with a new structure type: synthesis, disordered crystal structure and negative linear thermal expansion. Acta Crystallographica Section B, 75, pp. -.