Retrieved 2010-07-12. ↑ http://www.arrickrobotics.com/arobot/arobotboebot.html ↑ http://www.pololu.com/catalog/product/1602 ↑ http://www.devx.com/dotnet/Article/33216 ↑ http://www.asethome.org/asee/ASEE_PSW_2009_Proceedings.pdf ↑ "Archived copy" (PDF). Archived from the original (PDF) on 2011-07-16. Retrieved 2010-07-12. ↑ http://www.eng.buffalo.edu/courses/mae576/PROJECT/REPORTS/Project_GroupC.pdf ↑ "Archived copy".