The paper 'Design and Implementation of Virtual Museum Based on Web3D' was published in which year?
What year was 'Design and Implementation of Virtual Museum Based on Web3D' published?
SELECT DISTINCT ?answer WHERE { <https://dblp.org/rec/journals/tedu/ZhangY09> <https://dblp.org/rdf/schema#yearOfPublication> ?answer }
<https://dblp.org/rec/journals/tedu/ZhangY09>