Sullivan: On verge of potentially historic Bills season, anticipation rivals '90s
In the quest for Bills merchandise, sellers find creative ways to dodge trademarks
'It's who we are': Bills apply for trademark for 'Bills Mafia'
The Buffalo Bills are trademarking 'Bills Mafia,' and that has repercussions for retailers - Buffalo Business First
Buffalo Bills - Wikipedia
Buffalo Bills file trademark applications for Bills Mafia
Why Buffalo Bills fans are called Bills Mafia
Buffalo Bills file trademark applications for Bills Mafia