QIN, J.; LIU, X.; LIN, X.; CHEN, M. Using Metadata for Query Refinement and Recommendation. International Conference on Dublin Core and Metadata Applications, Universe, p. pp. 15–20, 2009. Disponível em: https://dcpapers-past.dublincore.org/pubs/article/view/955. Acesso em: 19 sep. 2024.