Thanh, Pham, 		Nhung, Pham, 		Thuy, Luong, AND 		Nhai, Nguyen.
" Effect of Temperature on Ultrasonic Velocities, Attenuations, Reflection and Transmission Coefficients between Motor Oil and Carbon Steel Estimated by Pulse-echo Technique of Ultrasonic Testing Method" <em>VNU Journal of Science: Mathematics - Physics</em> [Online], Volume 31 Number 4 (15 December 2015)