Original vixie-cron was written by Paul Vixie. Significant contributors: Marcela Mašláňová <mmaslano@redhat.com> Colin Dean <colin@colin-dean.org> Tomáš Mráz <tmraz@fedoraproject.org> Marco Migliori <sgerwk@aol.com> Sami Kerola <kerolasa@iki.fi>