All Things Pros blogArchived 2015-04-02 at the Wayback Machine, Board decisions involving the Wayback Machine to show status as prior art (Part I), Sunday, December 29, 2013
European Commission, Executive Agency for Small and Medium-sized Enterprises, Non-disclosure agreement : a business tool, Publications Office, 2021, doi:10.2826/547286
Nowotarski, Mark (July 2012). "Patent Invalidity Search". Insurance IP Bulletin. Archived from the original on July 19, 2012. Retrieved March 1, 2013.
All Things Pros blogArchived 2015-04-02 at the Wayback Machine, Board decisions involving the Wayback Machine to show status as prior art (Part I), Sunday, December 29, 2013