diff --git a/prism/README.txt b/prism/README.txt
index 913d6a7a..6ae664ea 100644
--- a/prism/README.txt
+++ b/prism/README.txt
@@ -94,7 +94,7 @@ Contributions to the development of PRISM have also been gratefully received fro
  * Paolo Ballarini & Kenneth Chan: Port of PRISM to Mac OS X
  * Rashid Mehmood: Improvements to low-level data structures and numerical solution algorithms
  * Alistair John Strachan, Mike Arthur and Zak Cohen: Integration of JFreeChart into PRISM
- * Carlos Bederian (working with Pedro D'Argenio): Addition of LTL model checking for MDPs to PRISM
+ * Carlos Bederian (working with Pedro D'Argenio): Addition of LTL model checking for MDPs to PRISM
  
 For more details see:
 
diff --git a/prism/VERSIONS.txt b/prism/VERSIONS.txt
index 884ba2de..1df09f32 100644
--- a/prism/VERSIONS.txt
+++ b/prism/VERSIONS.txt
@@ -1,43 +1,43 @@
 This file summarises the principal changes between each main public release of PRISM.
 For more detailed information about the various changes, see the file CHANGELOG.txt.
 
------------------------------------------------------------------------------
-Version 3.3.1 (released 22/11/2009)
------------------------------------------------------------------------------
-
-* Minor bug fixes
-
+-----------------------------------------------------------------------------
+Version 3.3.1 (released 22/11/2009)
+-----------------------------------------------------------------------------
+
+* Minor bug fixes
+
 -----------------------------------------------------------------------------
 Version 3.3 (beta1 released 20/5/2009)
 -----------------------------------------------------------------------------
-
-* New language parser:
-  - improved efficiency, especially on large/complex models
+
+* New language parser:
+  - improved efficiency, especially on large/complex models
   - more accurate error reporting
-* GUI model editor improvements:
-  - error highlighting
-  - line numbers
+* GUI model editor improvements:
+  - error highlighting
+  - line numbers
   - undo/redo feature
-* Expanded property specification language
-  - LTL (and PCTL*) now supported
-  - arbitrary expressions allowed, e.g. 1-P=?[...]
+* Expanded property specification language
+  - LTL (and PCTL*) now supported
+  - arbitrary expressions allowed, e.g. 1-P=?[...]
   - support for weak until (W) and release (R) added
-  - steady-state operators (S=?[...], R=?[S]) allowed for DTMCs
-  - optional semicolons to terminate properties in properties files
-* Modelling language changes:
-  - cleaner notation for functions, e.g. mod(i,n), not func(mod,i,n)
-  - function names can be renamed in module renaming
-  - language strictness: updates (x'=...) must be parenthesised
-  - ranges (x=1..3,5) no longer supported
-  - added conversion tool for old models (etc/scripts/prism3to4)
-* New tool features:
+  - steady-state operators (S=?[...], R=?[S]) allowed for DTMCs
+  - optional semicolons to terminate properties in properties files
+* Modelling language changes:
+  - cleaner notation for functions, e.g. mod(i,n), not func(mod,i,n)
+  - function names can be renamed in module renaming
+  - language strictness: updates (x'=...) must be parenthesised
+  - ranges (x=1..3,5) no longer supported
+  - added conversion tool for old models (etc/scripts/prism3to4)
+* New tool features:
   - added symmetry reduction functionality
-  - steady-state/transient probability computation for DTMCs
+  - steady-state/transient probability computation for DTMCs
   - expanded cost/reward-property model checking support
-  - PRISM-to-html and PRISM-to-Latex conversion scripts
-  - efficiency improvements to precomputation algorithms
-  - BSCC export functionality (-exportbsccs switch)
-  - improvements to memory handling, especially in sparse/hybrid engines
+  - PRISM-to-html and PRISM-to-Latex conversion scripts
+  - efficiency improvements to precomputation algorithms
+  - BSCC export functionality (-exportbsccs switch)
+  - improvements to memory handling, especially in sparse/hybrid engines
 
 -----------------------------------------------------------------------------
 Version 3.2 (beta released 25/2/2008)