Claassens, A.S. (Andries Stephanus), 1943-2013-09-072006-02-202013-09-072001-09-012007-02-202006-02-16Van der Waals, JH 2001, Slags as agricultural limes : reactivity and heavy metal and phosphorus bio-availability , MSc dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://upetd.up.ac.za/thesis/available/etd- 02162006-101533/>http://hdl.handle.net/2263/29056Dissertation (MSc (Soil Science))--University of Pretoria, 2007.Please read the abstract in the section 00front of this document© University of Pretoria 2001Liming of soils steel industry by productsLiming of soils environmental impact analysisUCTDDissertationhttp://upetd.up.ac.za/thesis/available/etd-02162006-101533/