https://www.youtube.com/watch?v=RlQEoJaLQRA https://www.youtube.com/watch?v=9uOMectkCCs
http://www.criticaleye.com/insights-servfile.cfm?id=623&view=1
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.110.6354&rep=rep1&type=pdf
http://eprints.lincoln.ac.uk/25880/7/25880%20FDS_vis2015_v10-Final.pdf.
pls watch the 2 YouTube video and use it with the article to DRAFT IT