URLDate
Verified		Extra Software
Requirements
(if any)		Access
Conditions		Notes
https://www.crops.org/publications/cs/pdfs/39/4/CS[...]08/05/2010 PDF ReaderItem is within a limited-access website
http://www.wctaturf.com/topics/repage/rejune00.html06/12/2012Western Canada Turfgrass Association reprint