Bhushan, B. and Tschichholz, M. and Leray, E. and Donnelly, W. (2001) Federated Accounting: Service Charging and Billing in a Business-to-Business Environment : Service charging and billing in a business-to-business environment. In: 2001 7th IEEE/IFIP International Symposium on Integrated Network Management Proceedings : Integrated Management Strategies for the New Millennium. 2001 7th IEEE/IFIP International Symposium on Integrated Network Management Proceedings: Integrated Management Strategies for the New Millennium . IEEE/IFIP, USA, pp. 107-121. ISBN 0-7803-6719-7