Sources edit
- https://web.archive.org/web/19980207215412/http://ogr.com/news/news0497.html
- https://web.archive.org/web/19980207215451/http://ogr.com/news/news0397.html
- https://web.archive.org/web/19970227082518/http://www.ogr.com/features/strategy/talonsoft.html
- https://web.archive.org/web/19970227063345/http://www.ogr.com:80/features/strategy/strategy2.html
- https://web.archive.org/web/19970606083453/http://www.ogr.com/features/strategy/talonsoft.html