THE ROBOT UMPIRES DEBATE - Baseball Town
Close Call Sports & Umpire Ejection Fantasy League: MLB Ejection
The History of Umpiring
Baseball's 'robot umpires' are here, and you might not even notice
umpires Life in the Fastpitch Lane
Solving the Umpire Shortage in Youth Sports Requires a Team
Major League Baseball is nearing the era of the robot umpire
The SABR Book of Umpires and Umpiring by Society for American
Why are there still umpires in Major League Baseball? Why can't it