ESSoS (Symposium) Madrid, Spain), SpringerLink (Online service), Erlingsson, U., Wieringa, R., & Zannone, N. (2011). Engineering secure software and systems: Third international symposium, ESSoS 2011, Madrid, Spain, February 9-10, 2011. proceedings. Springer.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)ESSoS (Symposium) Madrid, Spain), SpringerLink (Online service), Ulfar Erlingsson, Roel Wieringa, و Nicola Zannone. Engineering Secure Software and Systems: Third International Symposium, ESSoS 2011, Madrid, Spain, February 9-10, 2011. Proceedings. Berlin, Heidelberg: Springer, 2011.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)ESSoS (Symposium) Madrid, Spain), et al. Engineering Secure Software and Systems: Third International Symposium, ESSoS 2011, Madrid, Spain, February 9-10, 2011. Proceedings. Springer, 2011.