When would you use the different git merge strategies? - Stack Overflow
Plastic SCM blog: Merge recursive strategy
When I use “git clone https://github.com/CoolProp/CoolProp --recursive” command,Causes the folder “externals”content to be empty,like:fmtlib、IF97、Eigen,etc. · Issue #2093 · CoolProp/CoolProp · GitHub
Recursive Git Submodules – A nice guy's view on life