1. i3D (i3D S.A.),
http://www.i3dinc.com/
2. BP (British Petrolium),
http://www.bp.com/sectiongenericarticle800.do?categoryId=9040152&contentId=7073365
3. Becker Warkop,
http://www.becker-mining.com/runtime/cms.run/doc/English/987/News.html?newsid=107
4. http://www.youtube.com/watch?v=_GTICfs3JG4
5. Exxon Mobile,
http://poland.texasresearchbizwire.com/node/7