Résumé : We consider the efficient, scalable management of XML documents in structured peer-to-peer networks based on distributed hash table (DHT) indices and present an approach for answering queries by exploiting materialized views deployed in the DHT network independently by the peers. We describe how our approach can be employed to also handle RDF-annotated documents and provide algorithms to index and materialize the views in the DHT, as well as rewrite the queries using such views.