diff --git a/bibtexbrowser.php b/bibtexbrowser.php
index a76f05e..a221bfd 100755
--- a/bibtexbrowser.php
+++ b/bibtexbrowser.php
@@ -886,6 +886,9 @@ function latex2html($line) {
 
   $line = preg_replace('/([^\\\\])~/','\\1 ', $line);
 
+  $line = str_replace('---','—',$line);
+  $line = str_replace('--','–',$line);
+
   // performance increases with this test
   // bug found by Serge Barral: what happens if we have curly braces only (typically to ensure case in Latex)
   // added && strpos($line,'{')===false
@@ -905,6 +908,9 @@ function latex2html($line) {
   // in order not to mix with the HTML entities coming after (just in case)
   $line = str_replace('\\&','&', $line);
 
+  $line = str_replace('\_','_',$line);
+  $line = str_replace('\%','%',$line);
+
   // handling \url{....}
   // often used in howpublished for @misc
   $line = preg_replace('/\\\\url\{(.*)\}/U','<a href="\\1">\\1</a>', $line);