Update research paper with new sections, citations, and bibliography; enhance .gitignore for LaTeX artifacts

0_wissentschaftliches_arbeiten/references.bib

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+
+@article{bayani2017internet,
+title={Internet of things (IoT) advantages on e-learning in the smart cities},
+author={Bayani, Majid and Leiton, Karol and Loaiza, Mayra},
+journal={International Journal of Development Research},
+volume={7},
+number={12},
+pages={17747--17753},
+year={2017}
+}
+
+@inproceedings{formisano2015advantages,
+  title={The advantages of IoT and cloud applied to smart cities},
+  author={Formisano, Ciro and Pavia, Daniele and Gurgen, Levent and Yonezawa, Takuro and Galache, Jos{\`e} Antonio and Doguchi, Keiko and Matranga, Isabel},
+  booktitle={2015 3rd International Conference on Future Internet of Things and Cloud},
+  pages={325--332},
+  year={2015},
+  organization={IEEE}
+}
+
+@inproceedings{malik2023smart,
+  title={Smart Cities Monitoring using Internet of Things: Opportunities and Challenges},
+  author={Malik, Praveen Kumar and Roges, Rashmi and Tiwari, Praveen and Malik, Pooja and Kumar, Vinish and Gehlot, Anita},
+  booktitle={2023 4th International Conference on Electronics and Sustainable Communication Systems (ICESC)},
+  pages={450--455},
+  year={2023},
+  organization={IEEE}
+}
+
+@inproceedings{shatat2024smart,
+  title={Smart City Solutions: Using IoT and Data Analytics to Address Urban Challenges},
+  author={Shatat, Abdallah and Shatat, Ahmad and Akhtar, Mohammad Mobin and Al Dweiri, Mohammad},
+  booktitle={2024 International Conference on Decision Aid Sciences and Applications (DASA)},
+  pages={1--5},
+  year={2024},
+  organization={IEEE}
+}
+
+@article{houssein2024internet,
+  title={Internet of Things in Smart Cities: Comprehensive Review, Open Issues and Challenges},
+  author={Houssein, Essam H and Othman, Mahmoud A and Mohamed, Waleed M and Younan, Mina},
+  journal={IEEE Internet of Things Journal},
+  year={2024},
+  publisher={IEEE}
+}