M. Zhao, N. Birkner, J. Schaeperkoetter, R. J. Koch, P. Russell, S. T. Misture, T. Besmann, J. Amoroso, K. Brinkman“Durable Cr-substituted (Ba,Cs)1.33(Cr,Ti)8O16hollandite waste forms with high Cs loading”Journal of the American Ceramic Society(2022)