Fixing broken links in doc, part 3: the rest
diff --git a/Doc/library/difflib.rst b/Doc/library/difflib.rst
index 878d8e6..89a457c 100644
--- a/Doc/library/difflib.rst
+++ b/Doc/library/difflib.rst
@@ -331,9 +331,9 @@
.. seealso::
- `Pattern Matching: The Gestalt Approach <http://www.ddj.com/184407970?pgno=5>`_
+ `Pattern Matching: The Gestalt Approach <http://www.drdobbs.com/database/pattern-matching-the-gestalt-approach/184407970>`_
Discussion of a similar algorithm by John W. Ratcliff and D. E. Metzener. This
- was published in `Dr. Dobb's Journal <http://www.ddj.com/>`_ in July, 1988.
+ was published in `Dr. Dobb's Journal <http://www.drdobbs.com/>`_ in July, 1988.
.. _sequence-matcher: