A Conceptual Foundation for Versatile E-Commerce Platforms.

Ulrich Frank A Conceptual Foundation for Versatile E-Commerce Platforms. 48-57 2001 2 J. Electron. Commerce Res. 2 http://www.csulb.edu/web/journals/jecr/issues/20012/paper1.pdf db/journals/jecr/jecr2.html#Frank01