Interesting Research Paper on Constructors in OO Languages

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I saw an interesting post on Hacker News about constructors in OO 
languages. Apparently they are a real stumbling block for some 
programmers, which was quite a surprise to me. I think this might 
be relevant to a discussion about named parameters and whether we 
should ditch constructors for another kind of construct.

Link to the newsgroup post, the link to the paper is near the top:
http://erlang.org/pipermail/erlang-questions/2012-March/065519.html