Towards Exploratory OLAP Over Linked Open Data - A Case Study. - Dilshod Ibragimov; Katja Hose; Torben Bach Pedersen; Esteban Zimányi (BIRTE, 2014)

Processing Aggregate Queries in a Federation of SPARQL Endpoints. - Dilshod Ibragimov; Katja Hose; Torben Bach Pedersen; Esteban Zimányi (ESWC, 2015)

Optimizing Aggregate SPARQL Queries Using Materialized RDF Views. - Dilshod Ibragimov; Katja Hose; Torben Bach Pedersen; Esteban Zimányi (ISWC (1), 2016)