(For new reader and those who request 好友请求, please read my 公告栏 first)
我的博文
http://sciencenet.cn/blog/user_content.aspx?id=8412
On Research #8 - How to formulate a research problem
and
http://sciencenet.cn/blog/user_content.aspx?id=9328
On Research #9 - three things to remember