Bhushan, Bharat and Tschicholz, M. and Leray, Eric and Donnelly, William (2001) Federated Accounting: Service Charging and Billing in a Business-to-Business Environment. In: 2001 IEEE/IFIP Int'l Symposium on Integrated Network Management Proceedings. IEEE/IFIP, p. 107. ISBN 0-7803-6719-7