XPATH / XSLT: Selecting a node where the parent node's attribute matches the attribute of another node

Question

I\'m trying to apply a transformation to the below XML using XPath and XSLT.

  
    J         


        

Answer 1

Keys are the right tool for cross references. This stylesheet:

Output:

    
        John Smith
        Some Org
    
    
        Bill Atkins
        Another Org