Time-Life, World Reporter and the secretary: experiments with end-users: Information seeking in an information society research project. - David Nicholas; Kevin Harris; Gertrud Erbach (J. Inf. Sci., 1986)

Online: views on costs and cost-effectiveness. - David Nicholas; Gertrud Erbach; Kevin Harris (J. Inf. Sci., 1987)

The News International Newspapers' intranet. - Gertrud Erbach; Lynda Iley (Aslib Proc., 1999)