The following publications are possibly variants of this publication:
- Direction-aware KNN queries for moving objects in a road networkTianyang Dong, Yuan Lulu, Qiang Cheng, Bin Cao 0004, Jing Fan. www, 22(4):1765-1797, 2019. [doi]
- Direction-Aware Continuous Moving K-Nearest-Neighbor Query in Road NetworksTianyang Dong, Yuan Lulu, Yuehui Shang, Yang Ye, Ling Zhang. ijgi, 8(9):379, 2019. [doi]