diff --git a/bibtexbrowser.php b/bibtexbrowser.php
index 2dfd3ca..59fb1cb 100755
--- a/bibtexbrowser.php
+++ b/bibtexbrowser.php
@@ -1028,6 +1028,7 @@ function latex2html($line, $do_clean_extra_bracket=true) {
 
 
   $line = char2html($line,"'",'a',"acute");
+  $line = char2html($line,"'",'c',"acute");
   $line = char2html($line,"'",'e',"acute");
   $line = char2html($line,"'",'i',"acute");
   $line = char2html($line,"'",'o',"acute");
@@ -1062,6 +1063,7 @@ function latex2html($line, $do_clean_extra_bracket=true) {
   $line = char2html($line,'r','a',"ring");
 
   $line = char2html($line,'c','c',"cedil");
+  $line = char2html($line,'c','s',"cedil");
   $line = char2html($line,'v','s',"caron");
 
   $line = str_replace('\\ae','æ', $line);
@@ -1079,6 +1081,12 @@ function latex2html($line, $do_clean_extra_bracket=true) {
 
   $line = str_replace('\\v{c}','&#269',$line);
   $line = str_replace('\\v{C}','&#268',$line);
+  
+  // handling \textsuperscript{....} FAILS if there still are nested {}
+  $line = preg_replace('/\\\\textsuperscript\{(.*)\}/U','<sup>\\1</sup>', $line);
+  
+  // handling \textsubscript{....} FAILS if there still are nested {}
+  $line = preg_replace('/\\\\textsubscript\{(.*)\}/U','<sub>\\1</sub>', $line);
 
   if ($do_clean_extra_bracket) {
     // clean extra tex curly brackets, usually used for preserving capitals