diff --git a/publikationsliste/publikationen_vakuum_PTB.bib b/publikationsliste/publikationen_vakuum_PTB.bib
index 963b06e3c145f3f35ffd27ce64b8657497a403bf..40aef6981cd72a391cb1943b85eb6a18a135a3dd 100644
--- a/publikationsliste/publikationen_vakuum_PTB.bib
+++ b/publikationsliste/publikationen_vakuum_PTB.bib
@@ -20,6 +20,7 @@
   date         = {1968},  
   pages        = {78},
   volume       = {109},
+  issn         = {0016-4909},
   langid       = {ngerman}
 }
 @ARTICLE{Messer:1970,
@@ -88,7 +89,8 @@
 } 
 @ARTICLE{Bierhals:1973,
   author       = {Bierhals, J. and Grosse, G.},
-  title        = {Thermische Akkommodationskoeffizienten von Edelgasen am Wolfram},
+  title        = {Thermische Akkommodationskoeffizienten von Edelgasen
+    am Wolfram},
   journaltitle = PTB_J,
   date         = {1973},  
   pages        = {205},
@@ -109,7 +111,8 @@
 @ARTICLE{Messer:1975a,
   author       = {Messer, G.},
   title        = {Einfluß thermomolekularer Druckdifferenzen auf die Anzeige
-    von Glühkathoden-Ionisationsvakuummetern im Druckbereich $10^{-4}$\,Pa bis 10\,Pa},
+    von Glühkathoden-Ionisationsvakuummetern im Druckbereich $10^{-4}$\,Pa
+    bis 10\,Pa},
   journaltitle = PTB_J,
   date         = {1975},  
   pages        = {279},
@@ -117,7 +120,7 @@
 } 
 @ARTICLE{Messer:1975b,
   author       = {Messer, G.},
-  title        = {Vakuummeter-Kalibrierungsvergleich zwischen. dem NPL (UK)
+  title        = {Vakuummeter"=Kalibrierungsvergleich zwischen dem NPL (UK)
     und der PTB},
   journaltitle = PTB_J,
   date         = {1975},  
@@ -164,8 +167,8 @@
 @INPROCEEDINGS{Messer:1977a,
   author       = {Messer, G.},
   editor       = {Dobrozemsky, R.},
-  title        = {Calibration of vacuum gauges in the range $10^{-7}$\,Pa to 10\,Pa
-    with fundamental methods},
+  title        = {Calibration of vacuum gauges in the range $10^{-7}$\,Pa to
+    10\,Pa with fundamental methods},
   booktitle    = {Proc. 7th Int. Vac. Congr.},
   venue        = {Vienna},
   date         = {1977},   
@@ -364,7 +367,7 @@
 }
 @ARTICLE{Grosse:1980b,
   author       = {Grosse, G. and Messer, G.},
-  title        = {Outgassing poperties of stainless steel, copper and AlMg3
+  title        = {Outgassing properties of stainless steel, copper and AlMg3
     during pretreatment and application},
   journaltitle = {Le Vide},
   journalsubtitle = {Suppl.},
@@ -2238,6 +2241,7 @@
 @INBOOK{Jousten:1998c,
   author       = {Jousten K.},
   title        = {Calibrations and Standards},
+  chapter      = {12},
   booktitle    = {Foundations of Vacuum Science and Technology},
   editor       = {Lafferty, James M.},
   publisher    = {John Wiley \& Sons},