D. Castro Marc Giusti Joos Heintz Guillermo Matera Luis Miguel Pardo The Hardness of Polynomial Equation Solving. 347-420 2003 3 Foundations of Computational Mathematics 4 http://dx.doi.org/10.1007/s10208-002-0065-7 db/journals/focm/focm3.html#CastroGHMP03