Add reference on local and global state.

thesis.bib

@@ -662,6 +662,19 @@
   year      = {2008}
 }
 
+@inproceedings{PauwelsSM19,
+  author    = {Koen Pauwels and
+               Tom Schrijvers and
+               Shin{-}Cheng Mu},
+  title     = {Handling Local State with Global State},
+  booktitle = {{MPC}},
+  series    = {Lecture Notes in Computer Science},
+  volume    = {11825},
+  pages     = {18--44},
+  publisher = {Springer},
+  year      = {2019}
+}
+
 # Hop.js
 @inproceedings{SerranoP16,
   author    = {Manuel Serrano and