College football: A closer look at the NCAA's targeting rules
Why the Targeting Rule is a Good Rule - For Whom the Cowbell Tolls
College football targeting rule offers no leeway on accidental helmet hits
Pac-12 football coaches — including Utah's Kyle Whittingham — unhappy with how targeting rule is applied by conference officials
College football targeting rule: Proposed changes - Sports Illustrated
Officiating video week 3: Explaining the recent ejections and rules for a dropkick kick-off – Football Zebras
The Scoop and Score: The targeting rule in college football is perfect how it is – Annenberg Media
The college football rules we want to change, from overtime to targeting - ESPN
NFL Rulebook NFL Football Operations
College football targeting ejections, rules face increased debate - Sports Illustrated
Targeting: College football's hard-to-define penalty
NCAA removes penalty for overturned targeting calls
NFL targeting rule: What is it and some examples
Blackshirts respond after Gerry's controversial ejection