Back on July 17, 2007 Jonathan Rochkind started a thread on citation parsing:

"Does anyone have any decent open source code to parse a citation? I'm
thinking about a completely narrative citation like someone might
cut-and-paste from a bibliography or web page..."

We hope to develop such a service at Brown thanks to funding for a
one-year programming position from the Mellon Foundation.

The Brown University Library invites applications for a Senior
Research Library Programmer, a one-year position funded by the Andrew
W. Mellon Foundation. The Programmer will develop a web-based citation
parser which will operate with a high degree of accuracy on any
free-text (non-fielded) bibliographic data. The Programmer will test
and implement the parser on the publication data currently in the
Directory of Research and Researchers at Brown, and will make the
parser universally available via an API service hosted at Brown.

Qualifications: Bachelor's degree in Computer Science or a related
field and significant professional experience as a software developer.
Demonstrated experience building web applications using tools such as
SQL, XML/XSL, Perl, PHP, AJAX. Experience with
service-oriented-architecture, open source, and API development.
Experience with UNIX, UNIX utilities, data storage, and basic UNIX
administration. Knowledge of current web development standards and
cross platform compatibility and accessibility techniques. Ability to
work independently, meet deadlines, and communicate effectively in
oral and written form. Creativity in problem solving and excellent
analytical skills and judgment. Ability to create and maintain
appropriate documentation and records. Strong interpersonal skill;
ability to work successfully in a collaborative environment..

To apply for this position (JOB# B00982), please visit Brown's Online
Employment website (https://careers.brown.edu), complete an
application online, attach documents, and submit for immediate
consideration. Documents should include cover letter, resume, and
names and addresses of three references. Brown University is an Equal
Opportunity/Affirmative Action Employer.

Jean Rainwater
Co-leader, Integrated Technology Services
Brown University Library
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401.863.9031