Verschenen in the Jams-kpi.com, februari 2015
Artikel over: http://www.sciencedirect.com/science/article/pii/S2005290114000995
door: Peggy Bosch, Peter de Rover, Heike Staudte, Sabina Lim, Maurits van den Noort
http://www.jcimjournal.com/jim/FullText2.aspx?articleID=S2095-4964(16)60258-3