Signani, PLS, Larry (2000-07-19). "The Height of Accuracy". Point of Beginning (Trade Magazine). BNP Media. Archived from the original on 2012-04-27. Retrieved 2008-10-17.
Signani, PLS, Larry (2000-07-19). "The Height of Accuracy". Point of Beginning (Trade Magazine). BNP Media. Archived from the original on 2012-04-27. Retrieved 2008-10-17.