J. A. Perkins « Programming Practices: Analysis of Ada Source Developed for the Air Force, Army, and Navy » (DOI10.1145/74261.74287) —Proceedings TRI-Ada '89
Timwi, « Read-only ("const"-like) function parameters of C# », https://stackoverflow.com/, Stack Overflow, (consulté le ) : « [...] Then you can declare methods whose parameter type “tells” whether it plans on changing the variable or not:. [...] This mimics compile-time checks similar to constness in C++. As Eric Lippert correctly pointed out, this is not the same as immutability. But as a C++ programmer I think you know that. »
