Proudfoot, Judith, Klein, Britt, Barak, Azy, Calbring, Per, Cuijpers, Pim, Lange, Alfred, Ritterband, Lee, Andersson, Gerhard. Establishing guidelines for executing and reporting internet research. 2011.
Kay-Lambkin, Frances, White, Angela, Baker, Amanda, Kavanagh, David, Klein, Britt, Proudfoot, Judith, Drennan, Judy, Connor, Jason, Young, Ross. Assessment of function and clinical utility of alcohol and other drug web sites: An observational, qualitative study. 2011.