== Kilder / eksterne henvisninger ==
* [http://wta.formulatx.com/en/ Formula TX - St. Petersburg Ladies Trophy] {{Webarchive|url=https://web.archive.org/web/20160121185735/http://wta.formulatx.com/en/ |date=21. januar 2016 }} {{en sprog}} {{ru sprog}}
* [http://www.wtatennis.com/tournament/2018-st-petersburg-russia-1086 WTA - St. Petersburg Ladies Trophy] {{en sprog}}
* [http://www.itftennis.com/procircuit/tournaments/women's-calendar.aspx ITF Women's Circuit] {{Webarchive|url=https://web.archive.org/web/20120509063111/http://www.itftennis.com/procircuit/tournaments/women%27s-calendar.aspx |date= 9. maj 2012 }} {{en sprog}}
=== Referencer ===
{{reflist}}
Historie Foreninger Organisationer