Added examplatory citation for lessons, and an example for quotations

dexes/literature.bib

@@ -22,3 +22,11 @@
   year         = {2021},
   note         = {Zugriff: November 2021}
 }
+
+# Example Vorlesung
+@book{bib:schwarzer-vorlesung-swa,
+  author       = {Volker Schwarzer},
+  title        = {Vorlesung: Software Architektur},
+  year         = {2021},
+  publisher    = {Hochschule Worms},
+}