* Much of the material in this section comes from the book [http://www.irc.nl/page/28448 Smart Sanitation Solutions] produced in collaboration with [http://www.nwp.nl Netherlands Water Partnership], [http://www.waste.nl WASTE], [http://www.practicafoundation.nl/ PRACTICA], [http://www.irc.nl IRC International Centre for Water and Sanitation], SIMAWI and [http://www.partnersforwater.nl/ Partners voor Water]