docs: add 13 peer-review reference papers

papers/references/Amari2016_Placeholder.md

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+# Information Geometry and Its Applications (Amari 2016)
+
+This reference is a published book/monograph. 
+Due to copyright and its format, the full PDF is not hosted in this repository.
+
+**Citation:**
+Amari, S. (2016). *Information Geometry and Its Applications.* Springer.

papers/references/Muller1959_Placeholder.md

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+# Switching Theory in Space Technology (Muller 1959)
+
+This reference is a published book/proceedings. 
+Due to copyright and its format, the full PDF is not hosted in this repository.
+
+**Citation:**
+Muller, D. E. (1959). *Switching Theory in Space Technology.* Stanford University Press.