Citation: Leon-Escamilla, E.A.; Corbett, J.D. (2001). Hydrogen impurity effects, A5 Tt3 intermetallic compounds between A= Ca, Sr, Ba, Eu and Tt = Si, Ge, Sn with (Cr5 B3)-like structures that are stable both as binary and as ternary hydride and fluoride phases. Journal of Solid State Chemistry, 159, pp. 149-162.