MUELLEGGER, E.
; FREIBERGER, E.
; McCONVILLE, J.
; SAMWEL, M.
; RIECK, C.
; SCOTT, P.
; LANGERGRABER, G.
(2012):
Operation and maintenance of sustainable sanitation systems.
Factsheet of Working Group 10.
In: Sustainable Sanitation Alliance (SuSanA):
URL
[Accessed: 09.11.2015]