Arturo García Natividad Duro Raquel Dormido Sebastián Dormido The Reaction Wheel Pendulum: An Interactive Virtual Laboratory for Control Education. 54-58 2010 6 iJOE 3 http://www.online-journals.org/index.php/i-joe/article/view/1348 db/journals/ijoe/ijoe6.html#GarciaDDD10