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@@ -84,4 +84,6 @@ Specification-based Approach[^1] and RESTTESTGEN[^2]
 [^1]: Hamza Ed-Douibi, Javier Luis Cánovas Izquierdo, and Jordi Cabot. “Automatic generation of test cases for REST APIs: A specification-based approach”. In: 2018 IEEE 22nd international enterprise distributed object computing conference (EDOC). IEEE. 2018, pp. 181–190
 
 
-[^2]: Emanuele Viglianisi, Michael Dallago, and Mariano Ceccato. “RestTestGen: automated black-box testing of RESTful APIs”. In: 2020 IEEE 13th International Conference on Software Testing, Validation and Verification (ICST). IEEE. 2020, pp. 142–152
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+[^2]: Emanuele Viglianisi, Michael Dallago, and Mariano Ceccato. “RestTestGen: automated black-box testing of RESTful APIs”. In: 2020 IEEE 13th International Conference on Software Testing, Validation and Verification (ICST). IEEE. 2020, pp. 142–152
+
+[^3]: Jueun Park “[Automated Testing of OpenAPI Interfaces Using Attribute Grammars](https://git-st.inf.tu-dresden.de/jueun-park98/bachelor-thesis/-/jobs/42987/artifacts/raw/thesis.pdf?inline=false)”. In: TU Dresden. 2021