diff --git a/Parser/acceler.c b/Parser/acceler.c
index aee54ab..9f75b5d 100644
--- a/Parser/acceler.c
+++ b/Parser/acceler.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/bitset.c b/Parser/bitset.c
index 84c268c..dd32d0e 100644
--- a/Parser/bitset.c
+++ b/Parser/bitset.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/firstsets.c b/Parser/firstsets.c
index 57bdb96..b76230d 100644
--- a/Parser/firstsets.c
+++ b/Parser/firstsets.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/grammar.c b/Parser/grammar.c
index b422cf5..9005027 100644
--- a/Parser/grammar.c
+++ b/Parser/grammar.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/grammar1.c b/Parser/grammar1.c
index ee8933f..2abd3db 100644
--- a/Parser/grammar1.c
+++ b/Parser/grammar1.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/intrcheck.c b/Parser/intrcheck.c
index e9b0134..32b6555 100644
--- a/Parser/intrcheck.c
+++ b/Parser/intrcheck.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/listnode.c b/Parser/listnode.c
index 6d0eb45..719b1bb 100644
--- a/Parser/listnode.c
+++ b/Parser/listnode.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/metagrammar.c b/Parser/metagrammar.c
index 5d0b5b3..bb0750b 100644
--- a/Parser/metagrammar.c
+++ b/Parser/metagrammar.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/myreadline.c b/Parser/myreadline.c
index 18f8b1d..28008db 100644
--- a/Parser/myreadline.c
+++ b/Parser/myreadline.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/node.c b/Parser/node.c
index afeb99e..2c048c7 100644
--- a/Parser/node.c
+++ b/Parser/node.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/parser.c b/Parser/parser.c
index 1b11801..54cc9ee 100644
--- a/Parser/parser.c
+++ b/Parser/parser.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/parser.h b/Parser/parser.h
index ed45d2e..9949a0e 100644
--- a/Parser/parser.h
+++ b/Parser/parser.h
@@ -5,8 +5,8 @@
 #endif
 
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/parsetok.c b/Parser/parsetok.c
index a9389e1..ce79ce6 100644
--- a/Parser/parsetok.c
+++ b/Parser/parsetok.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/pgen.c b/Parser/pgen.c
index 1827477..db08d77 100644
--- a/Parser/pgen.c
+++ b/Parser/pgen.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/pgen.h b/Parser/pgen.h
index d9d1d09..d5d0a27 100644
--- a/Parser/pgen.h
+++ b/Parser/pgen.h
@@ -5,8 +5,8 @@
 #endif
 
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/pgenmain.c b/Parser/pgenmain.c
index c93fade..77743e6 100644
--- a/Parser/pgenmain.c
+++ b/Parser/pgenmain.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/printgrammar.c b/Parser/printgrammar.c
index 6699726..ad1ef10 100644
--- a/Parser/printgrammar.c
+++ b/Parser/printgrammar.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/tokenizer.c b/Parser/tokenizer.c
index baed65d..75b63fb 100644
--- a/Parser/tokenizer.c
+++ b/Parser/tokenizer.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved
 
diff --git a/Parser/tokenizer.h b/Parser/tokenizer.h
index edd0d19..d5b3664 100644
--- a/Parser/tokenizer.h
+++ b/Parser/tokenizer.h
@@ -5,8 +5,8 @@
 #endif
 
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved