Blome, C., & Henke, M. (2008). Single Sourcing vs. Multiple Sourcing in the Viewpoint of Supply Risk Management. In Zsidisin, G. A., Ritchie, R. (ed.), Supply Chain Risk: A Handbook of Assessment, Management, & Performance (p. p. 125-135). Springer. https://hdl.handle.net/2078.5/206389