Possibilities for testing and application of phosphate fertilizer made out of sewage sludge by SNB
Bart G.H. Timmermans,
Yolande A. Holthuijzen,
Jan G. Bokhorst.
2008. Phosphate fertilizer made out of sewage sludge: Possibilities for testing and application of phosphate fertilizer made out of sewage sludge by SNB.