diff --git a/Atom_updates.bib b/Atom_updates.bib
index a8562c8..f643cb0 100755
--- a/Atom_updates.bib
+++ b/Atom_updates.bib
@@ -93,7 +93,6 @@
   number = {4},
   month = dec,
   doi = {doi:10.1145/27633.27634},
-  pdf = {B/Bati-C-1986.pdf},
 }
 
 @INPROCEEDINGS{Beck-R-2002-Bled,
@@ -103,7 +102,6 @@
   year = {2002},
   address = {Bled, Slovenia},
   month = jun # {~17--19},
-  pdf = {B/Beck-R-2002-Bled.pdf},
 }
 
 @TECHREPORT{Bern-T-1999-W3C,
@@ -113,7 +111,6 @@
   year = {1999},
   type = {{W3C} {N}ote},
   month = {7~} # jun,
-  pdf = {B/Bern-T-1999-W3C.pdf},
   url = {http://www.w3.org/1999/04/WebData},
 }
 
@@ -122,8 +119,7 @@
   publisher = {Orion Business},
   year = {1999},
   author = {Tim Berners-Lee and Mark Fischetti},
-  address = {London},
-  comment = {Available in the Science Library (TK 5105.888.BG98).},
+  address = {London, UK},
   isbn = {0752820907},
 }
 
@@ -136,7 +132,6 @@
   pages = {34--43},
   number = {5},
   month = may,
-  pdf = {B/Bern-T-2001-SciAm.pdf},
 }
 
 @INPROCEEDINGS{Calv-D-1998-CoopIS,
@@ -145,10 +140,9 @@
   booktitle = {Proceedings of the Third IFCIS International Conference on Cooperative Information Systems (CoopIS'98)},
   year = {1998},
   pages = {280--291},
-  address = {New York},
+  address = {New York, USA},
   month = aug # {~20--22},
-  publisher = {IEEE Computer Society Press, Los Alamitos, CA},
-  pdf = {C/Calv-D-1998-CoopIS.pdf},
+  publisher = {IEEE Computer Society Press},
 }
 
 @INPROCEEDINGS{Guo-J-2003-DocEng,
@@ -159,9 +153,8 @@
   pages = {121--130},
   address = {Grenoble, France},
   month = nov # {~20--22},
-  publisher = {ACM Press, New York},
+  publisher = {ACM Press},
   doi = {doi:10.1145/958220.958244},
-  pdf = {G/Guo-J-2003-DocEng.pdf},
 }
 
 @ARTICLE{Haas-LM-1999-DEB,
@@ -173,7 +166,6 @@
   pages = {31--36},
   number = {1},
   month = mar,
-  pdf = {H/Haas-LM-1999-DEB.pdf},
 }
 
 @TECHREPORT{ISO-2001-9126-1,
@@ -195,8 +187,7 @@
   pages = {27--43},
   address = {Helsinki, Finland},
   month = nov # {~2},
-  publisher = {Helsinki Institute for Information Technology, Helsinki, Finland},
-  pdf = {K/Koiv-MR-2001-W3C.pdf},
+  publisher = {Helsinki Institute for Information Technology},
 }
 
 @TECHREPORT{Mano-F-2004-RDF,
@@ -206,7 +197,6 @@
   year = {2004},
   type = {{W3C} {R}ecommendation},
   month = {10~} # feb,
-  pdf = {M/Mano-F-2004-RDF.pdf},
   url = {http://www.w3.org/TR/rdf-primer/},
 }
 
@@ -217,7 +207,6 @@
   year = {2004},
   type = {{W3C} {R}ecommendation},
   month = {10~} # feb,
-  pdf = {M/McGu-DL-2004-OWL.pdf},
   url = {http://www.w3.org/TR/2004/REC-owl-features-20040210/},
 }
 
@@ -228,7 +217,7 @@
   year = {2004},
   type = {{OASIS} {C}ommittee {D}raft},
   number = {cd-UBL-1.0},
-  address = {Billerica, Massachusetts},
+  address = {Billerica, Massachusetts, USA},
   month = {15~} # sep,
   url = {http://docs.oasis-open.org/ubl/cd-UBL-1.0/},
 }
@@ -243,7 +232,6 @@
   number = {1},
   month = may,
   doi = {doi:10.1007/s00778-003-0087-z},
-  pdf = {M/Medj-B-2003-VLDB.pdf},
 }
 
 @TECHREPORT{Nott-M-2005-Atom,
@@ -262,7 +250,7 @@
   publisher = {O'Reilly {\&} Associates},
   year = {2003},
   author = {Shelley Powers},
-  address = {Sebastopol, CA},
+  address = {Sebastopol, California, USA},
 }
 
 @ARTICLE{Somm-RA-2002-SIGMOD,
@@ -275,7 +263,6 @@
   number = {1},
   month = mar,
   doi = {doi:10.1145/507338.507343},
-  pdf = {S/Somm-RA-2002-SIGMOD.pdf},
 }
 
 @INPROCEEDINGS{Ston-M-2001-SIGMOD,
@@ -285,11 +272,10 @@
   year = {2001},
   editor = {Walid G. Aref},
   pages = {552--560},
-  address = {Santa Barbara, CA},
+  address = {Santa Barbara, California, USA},
   month = may # {~21--24},
-  publisher = {ACM Press, New York, NY},
+  publisher = {ACM Press},
   doi = {doi:10.1145/375663.375739},
-  pdf = {S/Ston-M-2001-SIGMOD.pdf},
 }
 
 @INPROCEEDINGS{vaHe-E-1999-EDI,
@@ -299,10 +285,9 @@
   year = {1999},
   volume = {7},
   pages = {7061},
-  address = {Maui, Hawaii},
+  address = {Maui, Hawaii, USA},
   month = {5--8~} # jan,
-  publisher = {IEEE Computer Society Press, Los Alamitos, CA},
-  pdf = {V/vaHe-E-1999-EDI.pdf},
+  publisher = {IEEE Computer Society Press},
 }
 
 @INPROCEEDINGS{Wied-G-1993-SIGMOD,
@@ -315,12 +300,10 @@
   number = {2},
   series = {SIGMOD Record},
   pages = {434--437},
-  address = {Washington, D. C.},
+  address = {Washington, D.C., USA},
   month = may # {~26--28},
-  publisher = {ACM Press, New York, NY},
+  publisher = {ACM Press},
   doi = {doi:10.1145/170035.170118},
-  ee = {db/conf/sigmod/Wiederhold93.html},
-  pdf = {W/Wied-G-1993-SIGMOD.pdf},
 }
 
 @INPROCEEDINGS{Yu-C-2004-SIGMOD,
@@ -332,9 +315,8 @@
   pages = {371--382},
   address = {Paris, France},
   month = jun # {~13--18},
-  publisher = {ACM Press, New York, NY},
+  publisher = {ACM Press},
   doi = {doi:10.1145/1007568.1007611},
-  pdf = {Y/Yu-C-2004-SIGMOD.pdf},
 }
 
 @BOOK{Fens-D-2003,
@@ -342,7 +324,7 @@
   publisher = {MIT Press},
   year = {2003},
   editor = {Dieter Fensel},
-  address = {Cambridge, Massachusetts},
+  address = {Cambridge, Massachusetts, USA},
 }
 
 @INPROCEEDINGS{Babc-B-2002-Streams,
@@ -351,8 +333,8 @@
   booktitle = {Proceedings of the Twenty-First ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems (PODS 2002)},
   year = {2002},
   pages = {1--16},
-  address = {Madison, Wisconsin},
+  address = {Madison, Wisconsin, USA},
   month = jun # {~3--5},
   doi = {doi:10.1145/543613.543615},
-  pdf = {B/Babc-B-2002-Streams.pdf},
+  publisher = {ACM Press},
 }