Some icons used are from the <a href="http://www.fatcow.com/free-icons/">FatCow Farm-Fresh Web Icons Set</a>, licensed under a <a href="http://creativecommons.org/licenses/by/3.0/us/">Creative Commons Attribution 3.0 License</a>.
使用的部分图标来自 <a href="http://www.fatcow.com/free-icons/">FatCow Farm-Fresh 网页图标组</a>，采用<a href="http://creativecommons.org/licenses/by/3.0/us/">知识共享“署名 3.0”美国许可协议</a>授权。