Van Hamme, TimTimVan HammeRimmer, VeraVeraRimmerPreuveneers, DavyDavyPreuveneersJoosen, WouterWouterJoosenMustafa, A. MustafaA. MustafaMustafaAbidin, AysajanAysajanAbidinArgones Rua, EnriqueEnriqueArgones Rua2021-10-242021-10-242017https://imec-publications.be/handle/20.500.12860/29689Frictionless authentication systems: emerging trends, research challenges and opportunitiesProceedings paperhttps://www.esat.kuleuven.be/cosic/publications/article-2820.pdf