User Submitted Co-Authored Posts is a Fork of User Submitted Posts: http://wordpress.org/plugins/user-submitted-posts/ That has built in support for the Auttomatic plugin, Co-Authors-Plus http://wordpress.org/support/plugin/co-authors-plus
User Submitted Co-Authored Posts is a Fork of User Submitted Posts: http://wordpress.org/plugins/user-submitted-posts/ That has built in support for the Auttomatic plugin, Co-Authors-Plus http://wordpress.org/support/plugin/co-authors-plus