IMF pushes Europe for formal restructuring accord on Greek debt

``Pledges to review Greece's debt servicing won't be enough unless they're accompanied by specific terms for paring back the borrowing burden, David Lipton, the IMF's first deputy managing director, said in an interview in Washington. Greece received an 86 billion-euro bailout in August from the 19-nation currency bloc, which now wants the IMF to provide further support.''