- Field( DCNS('creator.expert'), 'authors', as_person, salias='author', multiple=True),
- Field( DCNS('creator.scenario'), 'authors', as_person, salias='author', multiple=True),
- Field( DCNS('creator.textbook'), 'authors', as_person, salias='author', multiple=True),
+ Field( DCNS('creator.expert'), 'authors_expert', as_person, salias='author', required=False, multiple=True),
+ Field( DCNS('creator.scenario'), 'authors_scenario', as_person, salias='author', required=False, multiple=True),
+ Field( DCNS('creator.textbook'), 'authors_textbook', as_person, salias='author', required=False, multiple=True),