(页面存档备份,存于互联网档案馆), Wall Street Journal (May 10, 2021). Charlie Osborne, Researchers trackdown five affiliates of DarkSide ransomware service (页面存档备份,存于互联网档案馆), ZDNet
USA Track & Field - Max Siegel named CEO of USA Track & Field. Usatf.org. April 23, 2012 [2012-05-14]. (原始内容存档于2017-08-31). Hightower steps down as USATF