RT Article T1 Newsgathering and child pornography research: The case of Lawrence Charles Matthews JF Columbia journal of law and social problems VO 33 IS 4 SP 343 OP 391 A1 Tridgell, A. LA Undetermined YR 2000 UL https://krimdok.uni-tuebingen.de/Record/1639609059 K1 Pornographie K1 Kinderopfer