Berberich, Klaus Databases and Information Systems, MPI for Informatics, Max Planck Society;
Link (Any fulltext)
Panev, K., & Berberich, K. (2014). Phrase Queries with Inverted + Direct Indexes. In B. Benatallah, A. Bestavros, Y. Manolopoulos, A. Vakali, & Y. Zhang (Eds.), Web Information Systems Engineering - WISE 2014 (pp. 156-169). Berlin: Springer. doi:10.1007/978-3-319-11749-2_13.