Update index.md

plans/Manhattan/Upper Park Avenue/index.md

@@ -6,4 +6,4 @@ published: true
 
 The Upper Park Avenue plan was adopted in 1993, last revised in 2004, and expired in 2008. The plan is a spin-off of the Harlem–East Harlem urban renewal area and its designated uses include residential, commercial, industrial, and community facility.
 
-See [References](http://www.urbanreviewer.org/#page=references.html). 
+[ (2006).](https://www.nyc.gov/assets/hpd/downloads/pdfs/services/upper-park-ave-first-amended-urp.pdf)