Add no-go theorems section and missing Werner et al. 2001 reference

docs/src/bibliography.md

@@ -60,6 +60,19 @@ wenger2004
 braunstein2005
 ```
 
+## No-Go Theorems and Fundamental Limitations in Gaussian Quantum Information
+
+```@bibliography
+Pages = []
+Canonical = false
+
+eisert2002a
+eisert2002b
+fiurasek2002
+giedke2002
+werner2001
+```
+
 ## Publications on Gaussian Quantum Measurements
 
 ```@bibliography

docs/src/references.bib

@@ -317,6 +317,20 @@ @article{grosshans2002
   publisher = {American Physical Society},
   doi = {10.1103/PhysRevLett.88.057902},
   url = {https://link.aps.org/doi/10.1103/PhysRevLett.88.057902}
+}
+  @article{werner2001,
+  title = {Bound Entangled Gaussian States},
+  author = {Werner, R. F. and Wolf, M. M.},
+  journal = {Phys. Rev. Lett.},
+  volume = {86},
+  issue = {16},
+  pages = {3658--3661},
+  numpages = {4},
+  year = {2001},
+  month = {Apr},
+  publisher = {American Physical Society},
+  doi = {10.1103/PhysRevLett.86.3658},
+  url = {https://link.aps.org/doi/10.1103/PhysRevLett.86.3658}
 }
 @article{giedke2003,
   title = {Entanglement of Formation for Symmetric Gaussian States},
@@ -405,4 +419,4 @@ @article{cenni2022
   pages = {743},
   month = {Jun},
   year = {2022}
-}
+}