RT Article T1 Human trafficking for sexual exploitation from Nigeria into Western Europe: the role of voodoo rituals in the functioning of a criminal network JF European journal of criminology VO 13 IS 2 SP 257 OP 273 A1 Baarda, Charlotte LA English YR 2016 UL https://krimdok.uni-tuebingen.de/Record/1647378850 K1 Criminal cooperation K1 Human trafficking K1 Organized crime K1 Transaction costs K1 Voodoo