RT Article T1 Self-Study, Obtaining or Viewing Terrorist Material Over the Internet: A Legitimacy Test of Consumer-Oriented Criminal Law Provisions in Four Western-European Countries JF European journal of crime, criminal law and criminal justice VO 28 IS 4 SP 379 OP 406 A1 De Coensel, Stéphanie LA English YR 2020 UL https://krimdok.uni-tuebingen.de/Record/1748364405 K1 Counter-terrorism K1 Legitimacy K1 Self-study K1 Internet K1 Criminalisation K1 Remote harm K1 Human rights K1 Right to seek, receive and impart information K1 Freedom of expression K1 Necessity