text: *C.F. Baes, [https://digital.library.unt.edu/ark:/67531/metadc1028644/m2/1/high_res_d/4470742.pdf The chemistry and thermodynamics of molten salt reactor fuels], Proc. AIME Nuclear Fuel Reprocessing Symposium, Ames, Iowa, USA, 1969 (August 25),