I have spent some time during the past couple of days cleaning up the bibliography. It is a great resource, and I'm glad that people are contributing. But there is a huge number of duplicate entries. And many entries that have been added from WorldCat, etc., are really a mess, in terms of spelling errors, diacritics, and so forth. It would be great if some people could spend some time and help cleaning this up. It's too much for me alone!