Changes

* [http://visualstudiomagazine.com/articles/2012/02/01/demystifying-the-c-yield-return-mechanism.aspx Demystifying the C# Yield-Return Mechanism -- Visual Studio Magazine] by James McCaffrey, February 02, 2012

==Frameworks==

* [https://en.wikipedia.org/wiki/.NET_Framework .NET framework from Wikipedia]

* [https://en.wikipedia.org/wiki/Mono_%28software%29 Mono from Wikipedia]