Donlan, S P2012-10-232012-10-232012Donlan, S P. 2012. Mixed and mixing systems worldwide: a preface. Potchefstroom electronic law journal (PELJ) = Potchefstroomse elektroniese regsblad (PER), 15(3):2-9 [http://www.nwu.ac.za/p-per/index.html]1727-3781http://hdl.handle.net/10394/7552enArticle