Prostitution Information Center with Mariska Majoor by AdventuresInEurope.Com
http://www.pic-amsterdam.com/wordpress/
http://www.pic-amsterdam.com/wordpress/en/
https://web.archive.org/web/20070321152143/http://www.pic-amsterdam.com:80/
http://www.elle.com/culture/a37573/meet-the-woman-who-is-organizing-sex-workers-in-amsterdam/
https://en.wikipedia.org/wiki/Prostitution_Information_Center
http://www.amsterdam.info/prostitution/pic-amsterdam/
http://www.amsterdam-travel-guide.net/red-light-district/prostitution-information-centre.php