Jansen AGN2012-12-122012-12-121986-06-30http://hdl.handle.net/10029/261436Abstract niet beschikbaarAbstract not available0 penUpflow Anaerobic Sludge Blaket (UASB) low cost sanitation research project in Bandung/Indonesia. Third progress report (january - June 1986)Report2012-12-12