3.7 参考文献

[1] Odersky, Martin, Lex Spoon, and Bill Venners. 2008. Programming in Scala. Artima.

[2]König, Dierk, Paul King, Guillaume Laforge, and Jon Skeet, 2009. Groovy in Action, Second Edition. Manning Early Access Program Edition. Manning Publications.

[3]Ghosh, Debasish. Why I like Scala's Lexically Scoped Open Classes. Ruminations of a Programmer. http://debasishg.blogspot.com/2008/02/why-i-like-scalas-lexically-scoped-open.html.