1. Recent advances in columbium alloys;Frank;Refract. Metal Alloy. Metallur. Technol.,1968
2. Niobium—Base alloys;Sheftel;Int. J. Refract. Metal. Hard Mater. 12,1993
3. Niobium and other high temperature refractory metals for aerospace applications;Prasad,2017
4. Development of superalloys;Betteridge;Mater. Sci. Technol.,1987
5. Processing, properties and applications of high-temperature niobium alloys;Wojcik;MRS Online Proc. Lib. (OPL),1993