https://github.com/foam-framework/foam/wiki/How-FOAM-is-Diff...
https://github.com/foam-framework/foam/wiki/KeyConcepts
http://foam-framework.github.io/foam/
https://github.com/foam-framework/foam/wiki/How-FOAM-is-Diff...
https://github.com/foam-framework/foam/wiki/KeyConcepts
http://foam-framework.github.io/foam/