Convert between bibliography database formats
pybtex-convert [ options ] in_filename out_filename
pybtex-convert converts bibliography database files between supported formats (currently BibTeX, BibTeXML and YAML).
--version
show program's version number and exit
-h, --help
show this help message and exit
--strict
turn warnings into errors
-f FORMAT, --from=FORMAT
input format (bibtex, bibtexml, yaml)
-t FORMAT, --to=FORMAT
output format (bibtex, bibtexml, yaml)
--keyless-bibtex-entries
allow BibTeX entries without keys and generate unnamed-<number> keys for them
--preserve-case
do not convert identifiers to lower case
-e ENCODING, --encoding=ENCODING
default encoding
--input-encoding=ENCODING
--output-encoding=ENCODING
http://pybtex.sourceforge.net/