Da Yang Tan, Wanchao Chi, Mohamed Faisal Bin Mohamed Salleh, K. H. Low. Study on Impact of Separation Distance to Traffic Management for Small UAS Operations in Urban Environment. In Chun-Hsien Chen, Amy J. C. Trappey, Margherita Peruzzini, Josip Stjepandic, Nel Wognum, editors, Transdisciplinary Engineering: A Paradigm Shift - Proceedings of the 24th ISPE Inc. International Conference on Transdisciplinary Engineering, TE 2017, Singapore, July 10-14, 2017. Volume 5 of Advances in Transdisciplinary Engineering, pages 39-46, IOS Press, 2017. [doi]