Property:Has bibtex type

This is a property of type String.

The allowed values for this property are:
 * Allows value::article
 * Allows value::book
 * Allows value::booklet
 * Allows value::inproceedings
 * Allows value::inbook
 * Allows value::incollection
 * Allows value::manual
 * Allows value::mastersthesis
 * Allows value::misc
 * Allows value::phdthesis
 * Allows value::proceedings
 * Allows value::techreport
 * Allows value::unpublished