Chawki Hajjem Stevan Harnad Yves Gingras Ten-Year Cross-Disciplinary Comparison of the Growth of Open Access and How it Increases Research Citation Impact. 39-46 2005 28 IEEE Data Eng. Bull. 4 http://sites.computer.org/debull/A05dec/hajjem.pdf db/journals/debu/debu28.html#HajjemHG05