summaryrefslogtreecommitdiff
path: root/zic/Theory
diff options
context:
space:
mode:
Diffstat (limited to 'zic/Theory')
-rw-r--r--zic/Theory10
1 files changed, 5 insertions, 5 deletions
diff --git a/zic/Theory b/zic/Theory
index 36b087eb4c5e..abdad2484932 100644
--- a/zic/Theory
+++ b/zic/Theory
@@ -1,4 +1,4 @@
-@(#)Theory 8.3
+@(#)Theory 8.4
This file is in the public domain, so clarified as of
2009-05-17 by Arthur David Olson.
@@ -360,10 +360,10 @@ abbreviations like `EST'; this avoids the ambiguity.
Calendrical issues are a bit out of scope for a time zone database,
but they indicate the sort of problems that we would run into if we
extended the time zone database further into the past. An excellent
-resource in this area is Edward M. Reingold and Nachum Dershowitz,
-<a href="http://emr.cs.uiuc.edu/home/reingold/calendar-book/second-edition/">
-Calendrical Calculations: The Millennium Edition
-</a>, Cambridge University Press (2001). Other information and
+resource in this area is Nachum Dershowitz and Edward M. Reingold,
+<a href="http://emr.cs.iit.edu/home/reingold/calendar-book/third-edition/">
+Calendrical Calculations: Third Edition
+</a>, Cambridge University Press (2008). Other information and
sources are given below. They sometimes disagree.