published in 2004 by S. Harnad, T. Brody, F. Vallières, L. Carr, S. Hitchcock, Y. Gingras, C. Oppenheim, Heinrich Stamerjohanns, E.~R. Hilf Journal: Nature Volume: 17; Web focus on access to literature Number: Links: http://www.nature.com/nature/focus/accessdebate/21.html
