Citation: Geballe, T.H.; Hull, G.W.jr.; Matthias, B.T.; Compton, V.B.; Corenzwit, E.; Longinotti, L.D. (1965). Superconductivity in binary alloy systems of the rare earths and of thorium with Pt-group metals. Physical Review (1,1893-132,1963/141,1966-188,1969), 137, pp. A119-A127.