SringerLink (Online services), Corradini, A., Klin, B., & Cîrstea, C. (2011). Algebra and coalgebra in computer science: 4th International Conference, CALCO 2011, Winchester, UK, August 30 - September 2, 2011. Proceedings. Springer Berlin Heidelberg.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)SringerLink (Online services), Andrea Corradini, Bartek Klin, و Corina Cîrstea. Algebra and Coalgebra in Computer Science: 4th International Conference, CALCO 2011, Winchester, UK, August 30 - September 2, 2011. Proceedings. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)SringerLink (Online services), et al. Algebra and Coalgebra in Computer Science: 4th International Conference, CALCO 2011, Winchester, UK, August 30 - September 2, 2011. Proceedings. Springer Berlin Heidelberg, 2011.