A woman with a child casts her ballot next to a Russian cossak (R) at a polling station during the parliamentary election in the southern Russian city of Rostov-on-Don December 4, 2011. Russians voted on Sunday in parliamentary polls seen as a test of Vladimir Putin's personal authority ahead of a planned return to the presidency, and an electoral watchdog complained of "massive cyber attacks" on a website alleging violations. REUTERS/Vladimir Konstantinov (RUSSIA - Tags: POLITICS ELECTIONS)