Because "R2R" is a warez group (a group that cracks software protection), there are no official academic papers published by the group itself. However, there are security research papers and technical analyses that study their techniques.
Their system often includes tools like WINHTTP.dll wrappers to prevent plugins from "calling home" to verify licenses. Impact on the Music Industry team r2r cracks
To understand the reverence R2R commands, you have to understand the complexity of modern audio software protection. Because "R2R" is a warez group (a group