Twelfth International Conference on Grey Literature : Transparency in Grey Literature, Grey Tech Approaches to High Tech Issues, 6-7 December 2010 in the National Technical Library, Prague, Czech Republic / ed. by D.J. Farace and J. Frantzen ; GreyNet, Grey Literature Network Service. – Amsterdam : TextRelease, February 2011. –142 p.; 30 cm. – Author Index. – (GL‑conference series, ISSN 2211-7199 ; No. 12)