| Annual report 2007 | 27 |
| Annual report 2009 | 54 |
| Annual report, 2005 | 25 |
| Early Entry into Prostitution, Liv Jessen, Pro Sentret, 1998 | 42 |
| Fair Game. A survy of the violence experienced by women working as prostitutes, Ulla Bjørndahl and Bjørg Norli, Pro Sentret, 2008 (2009) | 42 |
| Foreign Prostitution in Oslo. Pro Sentret's knowledge and experiences, Bjørg Norli, 2006 | 165 |