Media type: E-Article Title: Graph-based semantic annotation for enriching educational content with linked data Contributor: Vidal, Juan C.; Lama, Manuel; Otero-García, Estefanía; Bugarín, Alberto Published: Elsevier BV, 2014 Published in: Knowledge-Based Systems, 55 (2014), Seite 29-42 Language: English DOI: 10.1016/j.knosys.2013.10.007 ISSN: 0950-7051 Origination: Footnote: