A posteriori error estimates for a nonconforming finite element discretization of the time-dependent Stokes problem. - Serge Nicaise; Nadir Soualem (J. Num. Math., 2007)

A posteriori error estimates for a nonconforming finite element discretization of the time-dependent Stokes problem, II: Analysis of the spatial estimator. - Serge Nicaise; Nadir Soualem (J. Num. Math., 2007)