ABBA penalty shoot-out trial by Uefa - Dutch Referee Blog

ABBA penalty shoot-out trial by Uefa during Uefa Under 17 tournaments for women (in Czech Republic) and Men (in Croatia).

New penalty shootout system known as 'ABBA' to be trialled

case study Archives - Dutch Referee Blog

What is the ABBA penalty shootout format? The new spot-kicks system used at the Community Shield explained - Mirror Online

English Football League to use ABBA format in penalty shootouts - ESPN

Penalty shootouts: Academics find fairer format, but will football accept it?

Recap: Notts Varsity 2023 - Football - Platform Magazine

Daily life – History of Sorts

Fifa rule out 'fairer' ABBA system for penalty shoot-outs

case study Archives - Dutch Referee Blog