Privacy-Preserving Techniques in Social Distancing Applications: A Comprehensive Survey. - Arwa Alrawais; Fatemah Alharbi; Moteeb Al Moteri; Beshayr Altamimi; Hessa Alnafisah; Nourah Aljumeiah (J. Adv. Comput. Intell. Intell. Informatics, 2022)