@article {1708, title = {A Secure Solution for Commercial Digital Libraries}, journal = {Online Information Review Journal}, volume = {27}, number = {3}, year = {2003}, pages = {147-159}, publisher = {Emerald}, issn = {1468-4527}, author = {Javier Lopez and Antonio Mana and Ernesto Pimentel and Jose maria troya and Marienma Yague} }