Chiara LunertiRichard M. GuestRamon Blanco-GonzaloRaul Sánchez-ReilloSelfies for Mobile Biometrics: Sample Quality in Unconstrained Environments.145-1672019Selfie Biometricshttps://doi.org/10.1007/978-3-030-26972-2_7books/sp/19/RDS2019db/books/collections/RDS2019.html#LunertiGBS19