Numerical stabilization of Biot's consolidation model by a perturbation on the flow equation

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Solution of Terzaghi one-dimensional consolidation equation with general boundary conditions (2013, methodology): “(1), (2), (7), and (8) are referred to as the Terzaghi one-dimensional consolidation equation with general boundary conditions in this work.”
Stability and monotonicity for some discretizations of the Biot’s consolidation model (2015, unknown): “Such strategy has been applied in [29] to provide a stable scheme by using linear finite element approximations for both unknowns.”
On the causes of pressure oscillations in low‐permeable and low‐compressible porous media (2012, methodology): “[7], who employed a perturbation term depending only on a priori material and grid parameters.”
On the fixed-stress split scheme as smoother in multigrid methods for coupling flow and geomechanics (2017, methodology): “(12) For the spatial discretization, we use a stabilized linear finite element method [19].”