That's what I referred to, Representatives of Kherson, Nikolaev and Odessa appeal to the leadership of the Crimea, expressing their desire to be part of the autonomous republic if its powers will be enhanced by the results of the referendum, which is expected to be held on March 30, Vice-Speaker of the Supreme Council of Crimea Sergey Tsekov said on Monday.epresentatives of Kherson, Nikolaev and Odessa appeal to the leadership of the Crimea, expressing their desire to be part of the autonomous republic if its powers will be enhanced by the results of the referendum, which is expected to be held on March 30, Vice-Speaker of the Supreme Council of Crimea Sergey Tsekov said on Monday.