还有 关于引用wikipedia的资料
http://en.wikipedia.org/wiki/Wikipedia:Academic_useWikipedia is not considered a credible source. Wikipedia is increasingly used by people
in the academic community, from freshman students to professors, as an easily
accessibletertiary source for information about anything and everything.
However, citation of Wikipedia in research papers may be considered unacceptable,
because Wikipedia is not considered a credible or authoritative source.