The following are some of the sources consulted while putting together this guide. These may also be of interest for further information on this subject.
A three-part Web conference series organized by Academy Health. Recordings of the presentations and presentations slides are available. 101: Shining a White Light on Grey Literature 102: Advanced Search Strategies for Grey Literature 103: Standing out in a Sea of Grey Literature
Scherer RW, Langenberg P, von Elm E. Full publication of results initially presented in abstracts. Cochrane Database of Systematic Reviews 2007, Issue 2. Art. No.: MR000005. DOI: 10.1002/14651858.MR000005.pub3.
