Boer de, Luitzen and Ebben, Mark and Pop Sitar, Corina (2003) Studying purchasing specialization in organizations: a multi-agent simulation approach. Journal of Purchasing and Supply Management, 9 (4-5). pp. 199-206. ISSN 1478-4092
Boer de, Luitzen and Holmen, Elsebeth and Pop-Sitar, Corina (2003) Purchasing as an organizational design problem: the case of non-product-related items and services. Management Decision, 41 (9). pp. 911-922. ISSN 0025-1747
Ebben, Mark J.R. and Boer de, Luitzen and Pop Sitar, C.E. (2002) Multi-agent simulation of purchasing activities in organizations. In: 2002 Winter Simulation Conference, 8-11 December 2002, San Diego, California, USA.
Boer de, Luitzen and Pop-Sitar, Corina (2001) Managing purchasing of non-product related (NPR) goods and services - On horizontal frictions and vertical ignorance. In: 10th International Annual IPSERA Conference 2001, 8-11 April 2001, Jönköping, Sweden.
Telgen, Jan and Pop Sitar, Corina (2001) Possible kinds of values added by the purchasing department. In: 10th International Annual IPSERA Conference, 8-11 April 2001, Jonkoping, Sweden.
Pop-Sitar, Corina and Boer de, Luitzen (2000) Using data envelopment analysis (DEA) as a tool for purchasing control. In: 9th International IPSERA Conference and the Third Annual North American Research Symposium on Purchasing and Supply Chain Management, London and Ontario.