E. Archambault and E. Vignola-gagné, The Use of Bibliometrics in the Social Sciences and Humanities, Prepared for the Social Sciences and Humanities Research Council of Canada (SSHRC), 2004.

C. P. Auger, Information sources in grey literature, 1998.

M. Banks, Towards a continuum of scholarship: The eventual collapse of the distinction between grey and non-grey literature, GL7 Conference Proceedings, 7th International Conference on Grey Literature: Open Access to Grey Resources, pp.5-6, 2006.
DOI : 10.1007/s12109-006-0002-8

M. Banks, Connections between open access publishing and access to gray literature, J Med Libr Assoc, vol.92, issue.2, pp.164-166, 2006.

K. Benzies, S. Premji, K. A. Hayden, and K. Serrett, State-of-the-Evidence Reviews: Advantages and Challenges of Including Grey Literature, Worldviews on Evidence-Based Nursing, vol.158, issue.6, pp.55-61, 2006.
DOI : 10.1258/1355819054308530

G. Bognolo, Access is more important than citation. Rapid response to Davis, 2008.

B. Lewenstein, D. Simon, J. Booth, and M. Connolly, Open access publishing, article downloads, and citations: randomised controlled trial, British Medical Journal, vol.337, p.568, 2008.

J. Bollen and H. Van-de-sompel, Usage impact factor: The effects of sample characteristics on usage-based impact metrics, Journal of the American Society for Information Science and Technology, vol.18, issue.1, pp.136-149, 2008.
DOI : 10.1002/asi.20746

J. Bollen, A. R. Marko, and H. Van-de-sompel, Journal status, Scientometrics, vol.69, issue.3, 2006.
DOI : 10.1007/s11192-006-0176-z

URL : http://dx.doi.org/10.1007/s11192-006-0176-z

T. Brody, S. Harnad, and L. Carr, Earlier Web usage statistics as predictors of later citation impact, Journal of the American Society for Information Science and Technology, vol.329, issue.8, pp.1060-1072, 2006.
DOI : 10.1002/asi.20373

I. Craig, A. Plume, M. Mcveigh, J. Pringle, and M. Amin, Do open access articles have greater citation impact?A critical review of the literature, Journal of Informetrics, vol.1, issue.3, pp.239-248, 2007.
DOI : 10.1016/j.joi.2007.04.001

P. M. Davis, Author-choice open-access publishing in the biological and medical literature: A citation analysis, Forthcoming in Journal of the American Society for Information Science and Technology, 2008.
DOI : 10.1002/asi.20965

P. M. Davis and M. J. Fromerth, Does the arXiv lead to higher citations and reduced publisher downloads for mathematics articles?, Scientometrics, vol.57, issue.2, pp.203-215, 2007.
DOI : 10.1007/s11192-007-1661-8

P. Davis, B. Lewenstein, D. Simon, J. Booth, and M. Connolly, Open access publishing, article downloads, and citations: randomised controlled trial, BMJ, vol.337, issue.jul31 1, p.568, 2008.
DOI : 10.1136/bmj.a568

URL : http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2492576

G. Eysenbach, Citation Advantage of Open Access Articles PLoS Biology, 2006.

D. J. Farace, Rise of the phoenix: A review of new forms and exploitations of grey literature, Publishing Research Quarterly, vol.13, issue.2, pp.69-76, 1997.
DOI : 10.1007/s12109-997-0019-7

T. F. Frandsen and P. Wouters, Turning working papers into articles: An exercise in micro-bibliometrics, Journal of the American Society for Information Science and Technology, vol.60, issue.2, 2009.

W. D. Garvey and B. C. Griffith, An overview of the structure, objectives, and findings of the American Psychological Association's project on scientific information exchange in psychology, 1963.

P. Gaule and N. Maystre, Getting cited: does open access help? CEMI- WORKINGPAPER-2008-007, 2008.

A. A. Goodrum, K. W. Mccain, S. Lawrence, and C. L. Giles, Scholarly publishing in the Internet age: a citation analysis of computer science literature, Information Processing and Management, pp.661-675, 2001.

C. Hajjem, Y. Gingras, T. Brody, L. Carr, and S. Harnad, Open Access to Research Increases Citation Impact, 2005.

C. Hajjem, S. Harnad, and Y. Gingras, Ten-Year Cross-Disciplinary Comparison of the Growth of Open Access and How it Increases Research Citation Impact, IEEE Data Engineering Bulletin, vol.28, issue.4, pp.39-47, 2005.

S. Harnad, The special case of astronomy. Open Access Archivangelism, 2006.

S. Harnad and T. Brody, Comparing the impact of open access (OA) vs. non-OA articles in the same journals. D-Lib Magazine, 2004.

S. Harnad, T. Brody, F. Vallieres, L. Carr, S. Hitchcock et al., The green and the gold roads to Open Access, Nature, 2004.

E. A. Henneken, M. J. Kurtz, G. Eichhorn, A. Accomazzi, C. Grant et al., Effect of E-printing on Citation Rates in Astronomy and Physics, ArXiv, Computer Science, cs.DL/0604061, p.604061, 2006.
DOI : 10.3998/3336451.0009.202

D. Hicks, The difficulty of achieving full coverage of international social science literature and the bibliometric consequences, Scientometrics, vol.41, issue.1???2, pp.193-215, 1999.
DOI : 10.1007/BF02457380

D. Hicks, The Four Literatures of Social Science. Handbook of Quantitative Science and Technology Research, 2004.

K. K. Ho, Research output among the three faculties of business, education, humanities & social sciences in six Hong Kong universities. Higher Education, pp.195-208, 1998.

R. Kling and G. Mckim, Scholarly communication and the continuum of electronic publishing, Journal of the American Society for Information Science, vol.9, issue.10, pp.890-906, 1999.
DOI : 10.1002/(SICI)1097-4571(1999)50:10<890::AID-ASI6>3.0.CO;2-8

R. Kling and G. Mckim, Not just a matter of time: Field differences and the shaping of electronic media in supporting scientific communication, Journal of the American Society for Information Science, vol.12, issue.14, pp.1306-1320, 2000.
DOI : 10.1002/1097-4571(2000)9999:9999<::AID-ASI1047>3.0.CO;2-T

R. Kling, The internet and unrefereed scholarly publishing, Annual Review of Information Science and Technology, vol.2, issue.8, pp.591-631, 2004.
DOI : 10.1002/aris.1440380113

R. Kling, L. Spector, and G. Mckim, Locally controlled scholarly publishing via the internet: The guild model, The Journal of Electronic Publishing, vol.8, issue.1, 2002.

M. J. Kurtz, G. Eichhorn, A. Accomazzi, C. Grant, M. Demleitner et al., The effect of use and access on citations. Information Processing and Management: an International Journal, pp.41-1395, 2005.

M. J. Kurtz and E. Henneken, Open Access does not increase citations for research articles from The Astrophysics Journal, 2007.

N. Latronico, Who cares for citation advantage? Rapid response to Davis, 2008.

B. Lewenstein, D. Simon, J. Booth, and M. Connolly, Open access publishing, article downloads, and citations: randomised controlled trial, British Medical Journal, vol.337, p.568, 2008.

S. Lawrence, Online or Invisible? Nature 411 (6837): 521, 2001.

C. Lisée, V. Larivière, and E. Archambault, Conference proceedings as a source of scientific information: A bibliometric analysis, Forthcoming in: Journal of the American Society for Information Science and Technology, 2008.
DOI : 10.1002/asi.20888

R. Lucas and J. Willinsky, Open Access to E-Research e- Research: Transformations in Scholarly Practice

D. Luzi, E???print archives: a new communication pattern for grey literature, Interlending & Document Supply, vol.26, issue.3, pp.130-139, 1998.
DOI : 10.1108/02641619810231312

A. J. Meadows, Communicating Research, 1998.
DOI : 10.1108/S1876-0562(1997)97B

T. S. Metcalfe, The rise and citation impact of astro-ph in major journals, Bull. Am, 2005.

T. S. Metcalfe, The Citation Impact of Digital Preprint Archives for Solar Physics Papers, Solar Physics, vol.36, issue.1-2, pp.549-553, 2006.
DOI : 10.1007/s11207-006-0262-7

H. F. Moed, The effect of 'Open Access' upon citation impact: An analysis of ArXiv's Condensed Matter Section, Journal of the American Society for Information Science and Technology, issue.13, pp.58-2047, 2007.

H. F. Moed, M. Luwel, and A. J. Nederhof, Towards Research Performance in the Humanities, Library Trends, vol.50, issue.3, pp.498-520, 2002.

A. J. Nederhof and E. C. Noyons, International comparison of departments' research performance in the humanities, Journal of the American Society for Information Science, vol.43, issue.3, pp.249-256, 1992.
DOI : 10.1002/(SICI)1097-4571(199204)43:3<249::AID-ASI7>3.0.CO;2-I

A. J. Nederhof and A. F. Van-raan, A bibliometric analysis of six economics research groups: A comparison with peer review, Research Policy, vol.22, issue.4, pp.353-368, 1993.
DOI : 10.1016/0048-7333(93)90005-3

F. Neri and J. R. Rodgers, Ranking Australian Economics Departments by Research Productivity, Economic Record, vol.71, issue.s1, pp.74-84, 2006.
DOI : 10.1111/1475-4932.00019

J. Nicolaisen, Citation analysis, Annual Review of Information Science and Technology, vol.7, issue.2, pp.609-641, 2007.
DOI : 10.1002/aris.2007.1440410120

M. Norris, C. Oppenheim, R. , and F. , The citation advantage of open-access articles, Journal of the American Society for Information Science and Technology, vol.330, issue.4, pp.1963-1972, 2008.
DOI : 10.1002/asi.20898

N. L. Pelzer and W. H. Wiese, Bibliometric study of grey literature in core veterinary medical journals, Journal of the Medical Association, vol.91, issue.4, pp.434-441, 2003.

T. V. Perneger, Relation between online "hit counts" and subsequent citations: prospective study of research papers in the BMJ, BMJ, vol.329, issue.7465, pp.546-547, 2004.
DOI : 10.1136/bmj.329.7465.546

S. J. Pierce, On the origin and meaning of bibliometric indicators: Journals in the social sciences, 1886-1985, Journal of the American Society for Information Science, vol.43, issue.7, pp.477-487, 1992.
DOI : 10.1002/(SICI)1097-4571(199208)43:7<477::AID-ASI2>3.0.CO;2-E

W. C. Robinson and P. E. Poston, Literature Use by U.S. Economists Published in 1999, Behavioral & Social Sciences Librarian, vol.32, issue.2, pp.53-65, 2004.
DOI : 10.1108/eb026972

J. R. Rodgers and F. Neri, RESEARCH PRODUCTIVITY OF AUSTRALIAN ACADEMIC ECONOMISTS: HUMAN-CAPITAL AND FIXED EFFECTS, Australian Economic Papers, vol.71, issue.1, pp.67-87, 2007.
DOI : 10.1111/1475-4932.00019

M. D. Salman, R. Dewell, P. Willeberg, N. Grandmaison, M. Schoenbaum et al., Citations of plenary-session articles, the Proceedings of the International Symposium on Veterinary Epidemiology and Economics. Preventive Veterinary Medicine, pp.82-86, 2007.

G. Schwarz and R. Kennicutt, Demographic and citation trends in astrophysical papers and preprints, 2004.

T. F. Søndergaard, J. Andersen, and B. Hjørland, Documents and the communication of scientific and scholarly information: Revising and updating the UNISIST model, Proceedings of the American Society for Information Science and Technology, vol.58, issue.4, pp.278-320, 2003.
DOI : 10.1002/meet.14504001102

B. Van-der-meulen and L. Leydesdorff, Has the Study of Philosophy at Dutch Universities Changed Under Economic and Political Pressures? Science, Technology & Human Values, pp.288-321, 1991.

A. F. Van-raan, Measuring Science. Capita Selecta of Current Main Issues, 2004.

R. D. Walker and C. D. Hurt, Scientific and Technical Literature. An introduction to forms of communication, 1990.

R. Whitley, The organisation and role of journals in economics and other scientific fields. Working Paper 204, 1991.

L. Zhang, Discovering Information Use in Agricultural Economics: A Citation Study, The Journal of Academic Librarianship, vol.33, issue.3, pp.403-413, 2007.
DOI : 10.1016/j.acalib.2007.01.014