Martina Navratilova says trans players are 'cheats', but she was coached by one - ABC News
BBC World Service - Sporting Witness, Renee Richards: Transgender tennis star
Trans tennis player who beat male players while still physically female claims he spent a year battling sports bosses to have name and gender officially changed - Caters News Agency
People Profile: Renée Richards | Transgender Universe
Decades later, Renée Richards' breakthrough is as important as ever