@book { MenschenhandelzumZweckdersexuellenAusbeutung232233aStGB,
    title = "Menschenhandel zum Zweck der sexuellen Ausbeutung §§ 232, 233 a StGB",
    author = "Christian {Pfuhl}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03363-2",
    url = "https://www.peterlang.com/document/1046212"
}