BloxAR: augment your social life! - Niels C. Bakker; Jehan R. S. da Camara; Maarten van Elsas; Leon J. Helsloot; Gert Spek; Isha J. van Baar; Rafael Bidarra; Ben A. Kybartas (CHI PLAY, 2014)

AHEad: Privacy-preserving online behavioural advertising using homomorphic encryption. - Leon J. Helsloot; Gamze Tillem; Zekeriya Erkin (WIFS, 2017)

BAdASS: Preserving Privacy in Behavioural Advertising with Applied Secret Sharing. - Leon J. Helsloot; Gamze Tillem; Zekeriya Erkin (IACR Cryptol. ePrint Arch., 2018)