参考：

五种开源协议(GPL,LGPL,BSD,MIT,Apache) - 开源中国社区 http://www.oschina.net/question/54100_9455

开源软件授权协议详解(GPL_MPL_LGPL_BSD_Apache Licence_Creative Commons_MIT)_百度文库 http://wenku.baidu.com/link?url=9GUibJi2kJUHbceVpXH1Zyl30QCHZJBzoj49m2TAVZ1eviYQYjUvwNT1MMyqx6aa9g78G-RsrOJux_rCMFjceMc5V4ZbPYh50CKhNYVkgFy

LGPL_百度搜索 http://www.baidu.com/baidu?word=LGPL&ie=utf-8&tn=98012088_2_dg

GPLv2_百度搜索 http://www.baidu.com/baidu?word=GPLv2&ie=utf-8&tn=98012088_2_dg