Querying virtual hierarchies using virtual prefix-based numbers. - Curtis E. Dyreson; Sourav S. Bhowmick; Ryan Grapp (SIGMOD Conference, 2014)

Virtual eXist-db: Liberating Hierarchical Queries from the Shackles of Access Path Dependence. - Curtis E. Dyreson; Sourav S. Bhowmick; Ryan Grapp (Proc. VLDB Endow., 2015)