https://gist.github.com/3082684 https://gist.github.com/1844433

https://github.com/kriswallsmith/assetic/issues/109

http://www.dobervich.com/2011/05/10/less-css-assetic-configuration-in-a-symfony2-project/ http://blogsh.de/2011/09/18/assetic-less/ http://xavierbriand.net/2012/02/09/symfony2-assetic-twitter-boostrap-and-less/ http://www.kiwwito.com/article/less-css-with-assetic-and-symfony-2