While reading the web pages for the threads library I noticed some missing references. I don't know if they reflect a problem with the documentation source or a problem with the processing converting the source into html (if there was any such processing). I did check the html source of teh web pages to verify that it wasn't a display problem with my browser. http://boost.org/doc/html/threads.html#id1357380 In "Potentially non-thread-safe functions" this appears: "It is possible to write thread-safe implementations of these by using thread specific storage (see boost::thread_specific_ptr), and several C++ compiler vendors do just that. The technique is well-know and is explained in ." The reference at the end is missing. I thought I saw another example like this in the threads doc, but can't find it now. Also, the quote from Brinch Hansen at the end of http://boost.org/doc/html/threads/rationale.html doesn't indicate the source (though one could at least guess the article from the bibliography, though he's co-author of another one in the bibliography).