Use `SERE' consistently. Add more references.

* doc/tl/tl.tex: Replace all occurrences of ``rational
[expression]'' by SERE.  Add a couple of more notes and
bibliographic references.
* doc/tl/tl.bib: More entries.

doc/tl/tl.bib

-@InProceedings{	  somenzi.00.cav,
-  author	= {Fabio Somenzi and Roderick Bloem},
-  title		= {Efficient {B\"u}chi Automata for {LTL} Formul{\ae}},
-  booktitle	= {Proceedings of the 12th International Conference on
-		  Computer Aided Verification (CAV'00)},
-  pages		= {247--263},
-  year		= {2000},
-  volume	= {1855},
+
+@InProceedings{	  beer.01.cav,
+  author	= {Ilan Beer and Shoham Ben-David and Cindy Eisner and Dana
+		  Fisman and Anna Gringauze and Yoav Rodeh},
+  title		= {The Temporal Logic Sugar},
+  booktitle	= {Proceedings of the 13th international conferance on
+		  Computer Aided Verification (CAV'01)},
   series	= {Lecture Notes in Computer Science},
-  address	= {Chicago, Illinois, USA},
+  editor	= {Berry, Gérard and Comon, Hubert and Finkel, Alain},
+  publisher	= {Springer},
+  isbn		= {978-3-540-42345-4},
+  pages		= {363--367},
+  volume	= {2102},
+  year		= {2001},
+  month		= jul
+}
+
+@InProceedings{	  cerna.03.mfcs,
+  author	= {Ivana {\v{C}}ern{\'a} and Radek Pel{\'a}nek},
+  title		= {Relating Hierarchy of Temporal Properties to Model
+		  Checking},
+  booktitle	= {Proceedings of the 28th International Symposium on
+		  Mathematical Foundations of Computer Science (MFCS'03)},
+  pages		= {318--327},
+  year		= {2003},
+  editor	= {Branislav Rovan and Peter Vojt{\'a}{\v{a}}},
+  volume	= {2747},
+  series	= {Lecture Notes in Computer Science},
+  address	= {Bratislava, Slovak Republic},
+  month		= aug,
   publisher	= {Springer-Verlag}
 }
 
+@InProceedings{	  chang.92.icalp,
+  author	= {Edward Y. Chang and Zohar Manna and Amir Pnueli},
+  title		= {Characterization of Temporal Property Classes},
+  booktitle	= {Proceedings of the 19th International Colloquium on
+		  Automata, Languages and Programming (ICALP'92)},
+  year		= {1992},
+  pages		= {474--486},
+  publisher	= {Springer-Verlag},
+  address	= {London, UK}
+}
+
+@Article{	  cimatti.08.tcad,
+  author	= {Alessandro Cimatti and Marco Roveri and Stefano Tonetta},
+  journal	= {IEEE Transactions on Computer Aided Design of Integrated
+		  Circuits and Systems},
+  number	= 10,
+  pages		= {1737--1750},
+  title		= {Symbolic Compilation of PSL},
+  volume	= 27,
+  year		= 2008,
+  date		= {2009-03-20},
+  note		= {\url{https://es.fbk.eu/people/tonetta/tests/tcad07/}}
+}
+
+@Book{		  eisner.06.psl,
+  author	= {Cindy Eisner and Dana Fisman},
+  title		= {A Practical Introduction to {PSL}},
+  publisher	= {Springer},
+  year		= {2006},
+  series	= {Series on Integrated Circuits and Systems}
+}
+
+@InCollection{	  eisner.08.hvc,
+  author	= {Cindy Eisner and Dana Fisman},
+  title		= {Structural Contradictions},
+  booktitle	= {Proceedings of the 4th International Haifa Verification
+		  Conference (HVC'2008)},
+  series	= {Lecture Notes in Computer Science},
+  editor	= {Hana Chockler and Alan Hu},
+  publisher	= {Springer},
+  isbn		= {978-3-642-01701-8},
+  pages		= {164--178},
+  volume	= {5394},
+  year		= {2009},
+  month		= oct
+}
+
 @InProceedings{	  etessami.00.concur,
   author	= {Kousha Etessami and Gerard J. Holzmann},
   title		= {Optimizing {B\"u}chi Automata},
@@ -23,52 +90,33 @@
   series	= {Lecture Notes in Computer Science},
   address	= {Pennsylvania, USA},
   publisher	= {Springer-Verlag},
-  note          = {Beware of a typo in the version from the
-                  proceedings: $f \U g$ is purely eventual if both
-                  operands are purely eventual.  The revision of the
-                  paper available at
-                  \url{http://www.bell-labs.com/project/TMP/} is
-                  fixed.  We fixed the bug in Spot in 2005, thanks to
-                  LBTT.  See also \url{http://arxiv.org/abs/1011.4214v2}
-                  for a discussion about this problem.}
+  note		= {Beware of a typo in the version from the proceedings: $f
+		  \U g$ is purely eventual if both operands are purely
+		  eventual. The revision of the paper available at
+		  \url{http://www.bell-labs.com/project/TMP/} is fixed. We
+		  fixed the bug in Spot in 2005, thanks to LBTT. See also
+		  \url{http://arxiv.org/abs/1011.4214v2} for a discussion
+		  about this problem.}
 }
 
-@InProceedings{manna.87.podc,
- author = {Zohar Manna and Amir Pnueli},
- title = {A hierarchy of temporal properties},
- booktitle = {Proceedings of the sixth annual ACM Symposium on Principles of distributed computing (PODC'90)},
- year = {1990},
- location = {Quebec City, Canada},
- pages = {377--410},
- publisher = {ACM},
- address = {New York, NY, USA},
+@InProceedings{	  manna.87.podc,
+  author	= {Zohar Manna and Amir Pnueli},
+  title		= {A hierarchy of temporal properties},
+  booktitle	= {Proceedings of the sixth annual ACM Symposium on
+		  Principles of distributed computing (PODC'90)},
+  year		= {1990},
+  location	= {Quebec City, Canada},
+  pages		= {377--410},
+  publisher	= {ACM},
+  address	= {New York, NY, USA}
 }
 
-@InProceedings{	  chang.92.icalp,
-  author	= {Edward Y. Chang and Zohar Manna and Amir Pnueli},
-  title		= {Characterization of Temporal Property Classes},
-  booktitle	= {Proceedings of the 19th International Colloquium on
-		  Automata, Languages and Programming (ICALP'92)},
-  year		= {1992},
-  pages		= {474--486},
-  publisher	= {Springer-Verlag},
-  address	= {London, UK}
-}
-
-@InProceedings{	  cerna.03.mfcs,
-  author	= {Ivana {\v{C}}ern{\'a} and Radek Pel{\'a}nek},
-  title		= {Relating Hierarchy of Temporal Properties to Model
-		  Checking},
-  booktitle	= {Proceedings of the 28th International Symposium on
-		  Mathematical Foundations of Computer Science (MFCS'03)},
-  pages		= {318--327},
-  year		= {2003},
-  editor	= {Branislav Rovan and Peter Vojt{\'a}{\v{a}}},
-  volume	= {2747},
-  series	= {Lecture Notes in Computer Science},
-  address	= {Bratislava, Slovak Republic},
-  month		= aug,
-  publisher	= {Springer-Verlag}
+@Book{		  psl.04.lrm,
+  title		= {Property Specification Language Reference Manual v1.1},
+  publisher	= {Accellera},
+  year		= {2004},
+  month		= jun,
+  note		= {\url{http://www.eda.org/vfv/}}
 }
 
 @InProceedings{	  schneider.01.lpar,
@@ -85,6 +133,19 @@
   publisher	= {Springer-Verlag}
 }
 
+@InProceedings{	  somenzi.00.cav,
+  author	= {Fabio Somenzi and Roderick Bloem},
+  title		= {Efficient {B\"u}chi Automata for {LTL} Formul{\ae}},
+  booktitle	= {Proceedings of the 12th International Conference on
+		  Computer Aided Verification (CAV'00)},
+  pages		= {247--263},
+  year		= {2000},
+  volume	= {1855},
+  series	= {Lecture Notes in Computer Science},
+  address	= {Chicago, Illinois, USA},
+  publisher	= {Springer-Verlag}
+}
+
 @TechReport{	  tauriainen.03.a83,
   author	= {Heikki Tauriainen},
   title		= {On Translating Linear Temporal Logic into Alternating and