Ballots will include three questions: on whether Crimea should be independent, part of Russia, or part of Ukraine.
Russian socialite Ksenia Sobchak, a long-time TV host now intending to run for president, has said Crimea is Ukrainian territory, according to pro-Kremlin journalist Dmitry Smirnov.
The nomination of Ksenia Sobchak for the post of the Russian president actually provides a solution to Vladimir Putin's several problems, journalist Semen Novoprudsky wrote in the Novoe Vremya weekly.