Thai, Nguyen Hong, and Nguyen Thanh Trung. 2015. “ESTABLISHING FORMULAS FOR DESIGN OF ROOTS PUMP GEOMETRICAL PARAMETERS WITH GIVEN SPECIFIC FLOW RATE”. <i>Vietnam Journal of Science and Technology</i> 53 (4). Hanoi, VN:533. https://doi.org/10.15625/0866-708X/53/4/3908.