通过openURL webservice从数字图书馆获取期刊

I am trying to get journals from the IEEE Xplore Digital Library by using the openURL webservice. I have applied this query:

$response = file_get_contents(
    'http://ieeexplore.ieee.org/gateway/ipsSearch.jsp?querytext=java'
    .$query_text.'&ctype=Journals&oa=1&rs='.$ofs.'&sortfield=ti&sortorder=asc');

But this is displaying all articles from all journals together. I just want journals.

I have tried by setting the journal's title in the query to only display that journal but it is still displaying all articles.

Can anyone guide me on how I can get journals only?