Guidelines on pre- and co-processing of waste in cement production : use of waste as alternative fuel and raw material : assessment matrix / LafargeHolcim, giz, Deutsche Gesellschaft für Internationale Zusammenarbeit ; authors Michael Hinkel (LH), Steffen Blume and Daniel Hinchliffe (both GIZ), Dieter Mutz and Dirk Hengevoss (both FHNW)