A posteriori error estimates for elliptic problems with Dirac delta source terms. - Rodolfo Araya; Edwin M. Behrens; Rodolfo Rodríguez (Numerische Mathematik, 2006)

A New Family of Mixed Methods for the Reissner-Mindlin Plate Model Based on a System of First-Order Equations. - Edwin M. Behrens; Johnny Guzmán (J. Sci. Comput., 2011)

A Mixed Method for the Biharmonic Problem Based On a System of First-Order Equations. - Edwin M. Behrens; Johnny Guzmán (SIAM J. Numer. Anal., 2011)

New a Posteriori Error Estimator for an Augmented Mixed FEM in Linear Elasticity. - Tomás P. Barrios; Edwin M. Behrens; María González (ENUMATH, 2013)

A note on a priori error estimates for augmented mixed methods. - Tomás P. Barrios; Edwin M. Behrens; Rommel Bustinza (Appl. Math. Lett., 2016)

New a posteriori error estimator for an stabilized mixed method applied to incompressible fluid flows. - Tomás P. Barrios; Edwin M. Behrens; María González (Appl. Math. Comput., 2019)

An a posteriori error estimate for a dual mixed method applied to Stokes system with non-null source terms. - Tomás P. Barrios; Edwin M. Behrens; Rommel Bustinza (Adv. Comput. Math., 2021)

Numerical analysis of a stabilized scheme applied to incompressible elasticity problems with Dirichlet and with mixed boundary conditions. - Tomás P. Barrios; Edwin M. Behrens; Rommel Bustinza (Adv. Comput. Math., 2022)

An a posteriori error estimator for an augmented variational formulation of the Brinkman problem with mixed boundary conditions and non-null source terms. - Tomás P. Barrios; Edwin M. Behrens; Rommel Bustinza; José Manuel Cascón (J. Comput. Phys., 2025)