DCFS 2011 Limburg, Germany, SpringerLink (Online service), Holzer, M., Kutrib, M., & Pighizzini, G. (2011). Descriptional complexity of formal systems: 13th International Workshop, DCFS 2011, Gießen/Limburg, Germany, July 25-27, 2011. Proceedings. Springer.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)DCFS 2011 Limburg, Germany, SpringerLink (Online service), Markus Holzer, Martin Kutrib, و Giovanni Pighizzini. Descriptional Complexity of Formal Systems: 13th International Workshop, DCFS 2011, Gießen/Limburg, Germany, July 25-27, 2011. Proceedings. Berlin, Heidelberg: Springer, 2011.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)DCFS 2011 Limburg, Germany, et al. Descriptional Complexity of Formal Systems: 13th International Workshop, DCFS 2011, Gießen/Limburg, Germany, July 25-27, 2011. Proceedings. Springer, 2011.