A review of composition evolution in Ni-based single crystal superalloys - ScienceDirect https://www.sciencedirect.com/science/article/pii/S1005030220300268?via%3Dihub
Microstructural and compositional design of Ni-based single crystalline superalloys ― A review - ScienceDirect https://www.sciencedirect.com/science/article/pii/S0925838818302263?via%3Dihub