#68 Bibtex error while it is parsing

[Anonymous]

@inproceedings{chong_using_NLP_plagiarism_2010,
AUTHOR = "Chong, B. M., Specia, L., & Mitkov, R.",
booktitle={4th international plagiarism conference. Newcastle-upon-Tyne, UK},
TITLE = "Using natural language processing for automatic detection of plagiarism.",
year = 2010
}

[Densetsu no Ero-Sennin]

The AUTHOR field is incorrectly formatted here. Names should be separated with AND, not with a comma.

Changed the name parsing code to print a warning instead of raising an error, unless --strict mode enabled (revision 986).