C. Boukacem-zeghmouri and &. J. Schöpfel, Document supply and open access: an international survey on grey literature, Interlending & Document Supply, vol.34, issue.3, pp.96-104, 2006.
DOI : 10.1108/02641610610686012

URL : https://hal.archives-ouvertes.fr/sic_00181485

D. Farace, OpenSIGLE, Home to GreyNet's Research Community and its Grey Literature Collections: Initial Results and a Project Proposal Designing the Grey Grid for Information SocietyOpen science in e-science: contingency or policy e-Science and its implications for the library community, GL10 Conference Proceedings. Tenth International Conference on Grey Literature, pp.6-32515, 2006.

T. Hey, The Fourth Paradigm ??? Data-Intensive Scientific Discovery, 2009.
DOI : 10.1007/978-3-642-33299-9_1

D. Luzi, Towards an Institutional Repository of the Italian National Research Council: A survey on Open Access experiences Die Zentralen Fachbibliotheken und ihre Rolle für die Fachinformation in DeutschlandE-science and information services: a missing link in the context of digital libraries, Tenth International Conference on Grey Literature : Designing the Grey Grid for Information Society, pp.516-523, 2008.

P. Paillassard, Dissemination and preservation of French print and electronic theses, The Grey Journal, vol.3, issue.2, pp.77-93, 2007.
URL : https://hal.archives-ouvertes.fr/sic_00380488

H. E. Roosendaal, Scientific Publishing: From vanity to strategy, 2010.
DOI : 10.1533/9781780632100

J. Schöpfel, From SIGLE to OpenSIGLE and Beyond: An In-depth Look at Resource Migration in the European Context'.Document supply of grey literature and open access: an update', The Grey Journal J. Schöpfel & H. Prost Interlending & Document Supply, vol.3, issue.374, pp.45-51181, 2007.

J. Schöpfel, Usage of grey literature in open archives The Grey Mosaic: Piecing It All Together, GL11 Conference Proceedings. Eleventh International Conference on Grey Literature, pp.14-15, 2009.

. Maack, Encyclopedia of Library and Information Sciences, pp.2029-2039

C. Stock, LARA?Open access to scientific and technical reportsOpen access to full text and ETDs in Europe: improving accessibility through the choice of language?Grey literature at The British Library: revealing a hidden resource, Ninth International Conference on Grey Literature : Grey Foundations in Information Landscape, pp.42-51, 2006.

J. Willinsky, The Access Principle: The Case for Open Access to Research and Scholarship (Digital Libraries and Electronic Publishing), 2005.