Istenes, Vilmos. "Dr. Sir József (1912-1996)" (in Hungarian). Atlétika Sport és Életmód Magazin. Archived from the original on 27 April 2014. Retrieved 27 April 2014.
Istenes, Vilmos. "Dr. Sir József (1912-1996)" (in Hungarian). Atlétika Sport és Életmód Magazin. Archived from the original on 27 April 2014. Retrieved 27 April 2014.