Dynamic text field not showing link

I have a text field which is has dynamic text loaded in from a text file and is formatted with HTML. I was trying to add a link in there which is working fine with a normal URL such as http://www.kirupa.com but when I try to add this URL: [url=“http://www.decayzine.de/action.php?job=reviews_concert&id=85”]http://www.decayzine.de/action.php?job=reviews_concert&id=85 it is not showing the link or the text below. Does anyone have an idea why this is? Any help would be greatly appreciated.