AlHijjah 7, 1432, Nov 3, 2011, SPA -- Greek Finance Minister Evangelos Venizelos on Thursday challenged the prime minister's proposal for a referendum to be held on December 4, saying the priority was to remain in the eurozone, according to dpa. The move distances Venizelos, who is also deputy prime minister, from the idea of holding a referendum on whether Greeks want to remain part of the eurozone or not. Prime Minister George Papandreou mooted the idea Monday. "Greece's place in the euro is a historic achievement that cannot be put into question," said the finance minister in a written statement, adding "this established right of the Greek people cannot be put under scrutiny in a referendum." "The main prerequisite for the country is to feel safe and stable. Greek banks are totally protected as an integral part of the European banking system. That was clear from the discussion in Cannes last night."