QueryVOWL: Visual Composition of SPARQL Queries. - Florian Haag; Steffen Lohmann; Stephan Siek; Thomas Ertl (ESWC (Satellite Events), 2015)

QueryVOWL: A Visual Query Notation for Linked Data. - Florian Haag; Steffen Lohmann; Stephan Siek; Thomas Ertl (ESWC (Satellite Events), 2015)

Visual Querying of Linked Data with QueryVOWL. - Florian Haag; Steffen Lohmann; Stephan Siek; Thomas Ertl (SumPre-HSWI@ESWC, 2015)