一种启发式A*算法和网格划分的空间可达性计算方法
马林兵, 曹小曙
A computing method of spatial accessibility based on heuristic A * algorithms and grids partition
MA Lin-bing, CAO Xiao-shu
地理研究 . 2008, (1): 93 -99 .  DOI: 10.11821/yj2008010010