[{"draft":"","doc_id":"RFC0521","title":" Restricted use of IMP DDT ","authors":["A.M. McKenzie"],"format":["ASCII","HTML"],"page_count":"2","pub_status":"UNKNOWN","status":"UNKNOWN","source":"Legacy","abstract":"  ","pub_date":"May 1973","keywords":["  "],"obsoletes":[""],"obsoleted_by":[""],"updates":[""],"updated_by":[""],"see_also":[""],"doi":"10.17487\/RFC0521","errata_url":null}]