6d026765_Plugin_YAML___BukkitWiki_Attributes_Notes
[Attribute] authors [Required] no [Description] Allows you to list multiple authors, if it is a collaborative project. See author. [Example] authors: [Cogito, verrier, EvilSeph] [Notes] 
You can define both author and authors, however they will be merged into one list internally.
Plugin YAML - BukkitWiki
Notes