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The corresponding document outlines candidates' obligations to prevent attempts to rig election results.
Another presidential candidate, Ruslan Koshulynsky, has signed a memorandum on fair elections.
Read alsoTymoshenko with five other presidential candidates sign memorandum on fair elections
The document was signed during the Pravo Na Vladu TV panel show on Ukraine's 1+1 TV Channel on March 14.
The corresponding document outlines candidates' obligations to prevent attempts to rig election results.
Earlier, the document was signed by the following presidential candidates: Yulia Tymoshenko, Volodymyr Zelensky, Anatoliy Hrytsenko, Andriy Sadovyi, Oleksandr Shevchenko, Viktor Bondar, Oleh Liashko, Oleksandr Vilkul, and Vitaliy Skotsyk.