When do the images of biometric characteristics qualify as special categories of data under the GDPR?: a systemic approach to biometric data processing. - Bilgesu Sumer (BIOSIG, 2022)

Combining Blockchain and Biometrics: A Survey on Technical Aspects and a First Legal Analysis. - Mahdi Ghafourian; Bilgesu Sumer; Rubén Vera-Rodríguez; Julian Fiérrez; Ruben Tolosana; Aythami Morales; Els Kindt (CoRR, 2023)