Other than ACM, IEEE computer Society, Google Scholar which is the best site to get bibtex entries for computer science related articles ?
What is the best place to get BibTeX entries for computer science articles ?
soft question;research practice;paper review;bibliography
You don't get correct TCS Bibtex entries from anywhere.CiteSeer, Google Scholar, etc.: the Bibtex entries are garbage, worse than useless.Examples: Many conference papers in Google Scholar are exported as an @article, with (some version of) the title of the book in the journal field. Google Scholar abbreviates the first names of the authors. And then of course we have ridiculous things like author = {Submission, H.C.F.}  Google Scholar populates the fields by picking some words from the cover page of the paper.Publishers: the entries are a bit better, but you cannot rely on them  you must check every single field manually anyway. IEEE tends to be worst, ACM and Springer are little bit better, but even with the latter, you need to do manual editing and cross-checking. Springer has a strange idea of what is the title of a proceedings book. ACM gives book titles in a strange mixture of upper-case and lower-case letters. And, as usual, if there are accents in the authors' names, or any math in the title, all bets are off.Examples of booktitle fields for conference papers: Springer might produce something like booktitle = {Distributed Computing} for a proceedings volume  it requires a lot of imagination to figure out that it actually means Proc. 23rd International Symposium on Distributed Computing (DISC 2009). IEEE exports unreadable titles such as booktitle = {Sensor, Mesh and Ad Hoc Communications and Networks, 2007. SECON '07. 4th Annual IEEE Communications Society Conference on}. ACM is usually fairly good, but you need to fix the mixture of upper and lower case letters: booktitle = {Proceedings of the twenty-first annual symposium on Parallelism in algorithms and architectures}.Examples of titles with math: ACM might produce (\&\#948;+1) instead of {$(\Delta+1)$}. IEEE might produce Otilde(radic(log n)) instead of {$\tilde{O}(\sqrt{\log n})$}. I am not kidding you.MathSciNet: high-quality Bibtex entries for journal articles, but the coverage of TCS is poor, and conference papers are not necessarily that well indexed.Core TCS conferences such as FOCS, STOC, and SODA seem to be covered fairly well, but anything else is more patchy. For example, there seem to be few papers indexed from PODC or SPAA.The entries of the conference papers are not perfect. You can find something like @incollection instead of @inproceedings, or proceeding books such as BOOKTITLE = {Distributed computing}.DBLP: reasonably good, but once again, a lot of data comes from the publishers, and you need to double-check it anyway (beware of accents).Examples of accents: Michal Hanckowiak instead of Micha{\l} Ha{\'n}{\'c}kowiak.As JE pointed out in the comments, the correct title of a conference volume is a matter of taste (and a matter of interpretation). For example, LNCS volumes may have useless main titles and ridiculously long subtitles; therefore even if you had pedantically correct bibliographic entries, you most likely would like to edit some of them slightly, for readability and for consistency.But as soon as you start to tweak the titles of the conference volumes, it becomes obvious that even for your own purposes, there are many possible right answers. When you are running out of space, you might prefer Proc. STOC 2010 to Proceedings of the 42th ACM Symposium on Theory of Computing (STOC, Cambridge, MA, USA, June 2010). This answer at the TeX site gives one example of how to deal with multiple versions of the titles, so that you can easily switch between different variants.