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<referencetext xmlns="http://eprints.org/ep2/data/2.0">Tenopir C, King DW. The transformation of scientific scholarly journals: trends in the economics, production, information seeking, and use. [en prensa]. 
Griffths JM, King DW. Special libraries: increasing the information edge. Washington: Special Libraries Association, 1993. 
Tenopir C, King DW. Trends in scientific sholarly publishing. J Schol Publis 1997;48(3):135-70. 
Varian HR. Differential pricing and efficiency. First Monday: peer reviewed journal on the Internet [http://www.firstmonday.dk/issue2/different/] 
King DW. Some economic aspects of the Inrternet. JASIS 1998. [en prensa]. 
Sirbu MA. Creating an open market for information. J Acad Libr 1995; (Managing Technology Issue): 467-71. 
King DW, Mc Donald DD, Roderer RK. Scientific journals in the United States: their production, use, and economics Stroudsbourg: Hutchinson Ross Publishing, 1981.</referencetext>
