Loebbecke, C., Crowston, K., & Friederici, N. (2011). Integrated customer-focused knowledge portals: Design challenges and empirical approaches. Academy of Management.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Loebbecke, C., K. Crowston, و N. Friederici. Integrated Customer-focused Knowledge Portals: Design Challenges and Empirical Approaches. Academy of Management, 2011.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Loebbecke, C., et al. Integrated Customer-focused Knowledge Portals: Design Challenges and Empirical Approaches. Academy of Management, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.