Changes

* Boesch, A. and Schertenleib, R. (1985). Pit [https://www.susana.org/en/knowledge-hub/resources-and-publications/library/details/3091 Emptying on-Site Excreta Disposal Systems. Field Tests with Mechanized Equipment in Gaborone (Botswana)]. International Reference Centre for Waste Disposal, Dübendorf, CH.:Available at: [http://www.sandec.ch sandec.ch] (Comprehensive summary of technical components, performance with different sludge types, and maintenance)

* Chowdhry, S. and Koné, D. (2012). [https://www.susana.org/en/knowledge-hub/resources-and-publications/library/details/1662 Business Analysis of Fecal Sludge Management: Emptying and Transportation Services in Africa and Asia]. Bill & Melinda Gates Foundation, Seattle, US.:Available at: [http://www.susana.org/library susana.org/library]

* O’Riordan, M. (2009). [https://www.susana.org/en/knowledge-hub/resources-and-publications/library/details/1424 Investigation into Methods of Pit Latrine Emptying. Management of Sludge Accumulation in VIP Latrines]. WRC Project 1745, Water Research Commission, Pretoria, ZA.:Available at: [http://www.susana.org/library susana.org/library] (Includes a detailed analysis of field experiences with the Vacutug)

* Strande, L., Ronteltap, M. and Brdjanovic, D. (Eds.) (2014). Faecal Sludge Management. Systems Approach for Implementation and Operation(book). IWA Publishing, London, UK.:Available at: [http://www.sandec.ch sandec.ch] (Detailed book compiling the current state of knowledge on all aspects related to FSM)