Brezzi, F.Rappaz, J.Raviart, P. A.2006-08-242006-08-242006-08-24198110.1007/BF01395805https://infoscience.epfl.ch/handle/20.500.14299/233657Finite Dimensional Approximation of Non-Linear Problems .3. Simple Bifurcation Pointstext::journal::journal article::research article