1. Space power systems advanced technology conference;Anon,1966
2. The effect of oxygen on the corrosion of niobium by liquid potassium;Litman;Oak Ridge Nat. Lab. Rept. No. ORNL-3751,1965
3. Space-power-system material compatibility tests of selected refractory metal alloys with boiling potassium;Rosenblum,1967
4. Effects of impurities in some refractory metal-alkali metal systems;Disiefano;Corrosion,1964
5. Solubility of refractory metals in lithium and potassium;Cleary;Pratt and Whitney Aircraft, Rept. No. TIM-850,1965