8LINDSEY G, MARA J M, KUAN S C. Access, equity, and urban greenways: An exploratory investigation [J]. Profes- sional Geographer,2001,53(5) :332-346.
9SHEN Q. Location characteristics of inner-city neighborhoods and employment accessibility of low wage workers[J]. Envi- ronment and Planning B,1998,25(3):345-365.