Worst players who have their jerseys retired
Bill Russell's No. 6 Joins Rare Class of Retired Jersey Numbers - The New York Times
NBA Countdown: Which player wore No. 32 best in league history?
Crunching the Numbers: College Basketball Players Can't Wear 6, 7, 8 or 9 - The New York Times
NBA players with two different numbers retired
All of the current NBA players deserving of jersey retirements
10 Players Who Returned To The NBA After Being Away For Years: Magic Johnson Returned After A 5-Year Retirement - Fadeaway World
Besides Michael Jordan, has there been a player in any sport whose jersey number was retired by two or more teams? - Quora
Retired NBA Players Still Getting Paid By Their Old Teams