International Conference on Software, Services and Semantic Technologies Bourgas, Bulgaria, SpringerLink (Online service), Dicheva, D., Markov, Z., & Stefanova, E. (2011). Third international conference on software, services and semantic technologies S3T 2011. Springer.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Conference on Software, Services and Semantic Technologies Bourgas, Bulgaria, SpringerLink (Online service), Darina Dicheva, Zdravko Markov, و Eliza Stefanova. Third International Conference on Software, Services and Semantic Technologies S3T 2011. Berlin, Heidelberg: Springer, 2011.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)International Conference on Software, Services and Semantic Technologies Bourgas, Bulgaria, et al. Third International Conference on Software, Services and Semantic Technologies S3T 2011. Springer, 2011.