Issue No. 05 - September/October (2002 vol. 6)
<p>Combining distributed role-based access control with a public key infrastructure can facilitate secure, flexible data access in environments where enterprises collaborate via Web services.</p>
K. Fürst, T. Schmidt and G. Wippel, "Managing Access in Extended Enterprise Networks," in IEEE Internet Computing, vol. 6, no. , pp. 67-74, 2002.