[1] Nikolić acted as a mentor to many young basketball coaches in Yugoslavia, some of whom—such as Božidar Maljković, Dušan Ivković, Bogdan Tanjević, and Željko Obradović—would go on to great professional success in their own right.

[2] Young Aleksandar enjoyed a privileged upbringing courtesy of his wealthy father, Đorđe Nikolić, who had him at the age of 62.

[3] After spending the first few years of his life in Brčko, Nikolić moved with his family to the capital Belgrade, where he would grow up.

[4] After his playing career was over, Nikolić became involved with coaching, both with Serbia-based clubs, and those in Italy, notably Ignis Varese.

During this time, he coached two future members of the FIBA Hall of Fame, in Borislav Stanković and Krešimir Ćosić.