[PPL-devel] [GIT] ppl/ppl(master): Duplicate key avoided.

[Roberto Bagnara]

Module: ppl/ppl
Branch: master
Commit: a2462d7deec1083c3cd018b5824eb9c86738b981
URL:    http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=a2462d7deec1083c3cd018b5824eb9c86738b981

Author: Roberto Bagnara <roberto.bagnara at bugseng.com>
Date:   Sat Dec 28 09:53:29 2013 +0100

Duplicate key avoided.

---

 doc/ppl_citations.bib |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/ppl_citations.bib b/doc/ppl_citations.bib
index 2d44d17..b82f57b 100644
--- a/doc/ppl_citations.bib
+++ b/doc/ppl_citations.bib
@@ -2127,7 +2127,7 @@ Summarizing:
               checkers."
 }
 
- at Inproceedings{MihailaSS13,
+ at Inproceedings{MihailaSS13a,
   Author = "P.-L. Garoche and T. Kahsai and C. Tinelli",
   Title = "Incremental Invariant Generation Using Logic-Based Automatic Abstract Transformers",
   Booktitle = "NASA Formal Methods:
@@ -3474,7 +3474,7 @@ Summarizing:
 
 }
 
- at Inproceedings{MihailaSS13,
+ at Inproceedings{MihailaSS13b,
   Author = "B. Mihaila and A. Sepp and A. Simon",
   Title = "Widening as Abstract Domain",
   Booktitle = "NASA Formal Methods: