Introduction draft

thesis.bib

@@ -3563,4 +3563,15 @@
   number    = {12},
   pages     = {1053--1058},
   year      = {1972}
+}
+
+# The universal type
+@InProceedings{Longley03,
+  author    = {John Longley},
+  title     = {Universal Types and What They are Good For},
+  booktitle = {Domain Theory, Logic and Computation},
+  year      = 2003,
+  publisher = {Springer Netherlands},
+  pages     = {25--63},
+  OPTisbn   = {978-94-017-1291-0}
 }