Hải, Nguyễn, 		Tuấn, Vũ, 		Hà, Trần, 		Minh, Nguyễn, AND 		Trình, Chử.
" Fluidic Capacitive Sensor for Detection of Air Bubble  Inside Engine Lubricating Oil" <em>VNU Journal of Science: Natural Sciences and Technology</em> [Online], Volume 31 Number 1 (15 March 2015)