Fix create_link method in model

app/models/journal_paper.rb

@@ -59,7 +59,7 @@ class JournalPaper
     title << self.issue_no if (self.issue_no.present? && self.issue_no != "0")
     title << "pp"+self.form_to_start+"-"+self.form_to_end if (self.form_to_start.present? && self.form_to_start != "0")
     title << ( !self.journal_levels.blank? ? "(#{self.journal_levels.collect{|x| x.title}.join(', ')})" : nil)
-    title.join(', ')
+    title.join(', ').gsub(', ,',',')
   end
 
   def authors