3Miranda S,Mangione GR,Orciuoli F,et al.Autornalic Generation of Assessment Objects and Remedial Works for M@B/OL].http://ieeexplore.ieee.org/ stamp/stamp.jsp?arnumber=-6671018,2016-04-25.
4Piedra N,Chicaiza J,Lopez J,et al.Supporting Openness of MOOCs Contents through of an OER and OCW Framework Based on Linked Data Technologies[DB/OL].http://ieeexplore.ieee.org/stamp/stamp.jsp? tp=&arnumber=6826249,2016-03-23.
5Hover KM,M tl hlhhser M.LOOCs:Linked Open Online Courses:A Vision[DB/OL].http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnum ber=-6901536,2016-02-26.
6Piedra N,Chicaiza J,Lopez J.An Approach for Description of Open Educational Resources Based on Semantic Technologies[DB/OL]. https://www.researchgate.net/publication/2241 g8709,2016-04-13._ An approach_for_description of_Open_Educational Resources_ based on semantic_technologies. 2016-O4-03.
7Piedra N,Chicaiza J,Lopez J.An Approach for Description of Open Educational Resources Based on Semantic Technologies[DB/OL]. https://www.researchgate.net/publieation/224148709,2016-04-13._ An_approach for description_of_Open_EducationalResources_ based on semantic_technologies. 2016-04——03.
9Patel-Schneider PF, Hayes P, Horrocks I, et al. OWL Web Ontology Language Semantics and Abstract Syntax[J]. Encyclopedia of Information Science & Technology Second Edition, 2004,(1):7-15.