1. Benchmarking with DEA, SFA and R;Bogetoft,2011
2. Rationalising inefficiency: a study of Canadian bank branches;Asmild;Omega,2013
3. Benchmarking in the European water sector;Horncastle;Appl. Prod. Econ.,2021
4. DEA and its use in the regulation of water companies;Thanassoulis;European J. Oper. Res.,2000
5. TCB 2019 https://www.acm.nl/sites/default/files/documents/ceer-sumicsid-project-ceer-tcb18-pan-european-cost-efficiency-benchmark-for-electricity-transmission-system-operators-main-report-july-2019.pdf.