diff --git a/paper.md b/paper.md
index 3fce9e3..67d5f22 100644
--- a/paper.md
+++ b/paper.md
@@ -1,41 +1,78 @@
 ---
 title: 'Tamaas: a library for elastic-plastic contact of rough surfaces'
 tags:
   - C++
   - Python
   - contact
   - rough surface
   - plasticity
 authors:
-  - name: Lucas Frerot
+  - name: Lucas Frérot
     orcid: 0000-0002-4138-1052
     affiliation: 1
   - name: Guillaume Anciaux
     orcid: 0000-0002-9624-5621
     affiliation: 1
-  - name: Jean-Francois Molinari
+  - name: Jean-François Molinari
     orcid: 0000-0002-1728-1844
     affiliation: 1
 affiliations:
  - name: Civil Engineering Institute, Ecole Polytechnique Federale de Lausanne, Switzerland
    index: 1
 date: 13 December 2019
 bibliography: paper.bibtex
 ---
 
 # Summary
 
 Physical phenomena that happen at solid contact interfaces, such as
 friction and wear, are largely entwined with the roughness of the
 surfaces in contact. For example, the fact that the friction force
 between two solids in contact is independent of their apparent contact
 area is due to roughness, as the solids are only in contact over a
 smaller "true contact area" which only depends on the normal force.
 Roughness occurs on most man-made and natural surfaces alike
 [@persson_nature_2005] and can span many orders of magnitude, from the
 nanometer scale to the kilometer scale [@renard_constant_2013]. This
 poses a serious challenge to conventional numerical approaches in
 solid mechanics such as the finite-element method (FEM).
 
+Boundary integral methods [@bonnet_boundary_1995] are commonly
+employed in place of the FEM in rough elastic contact because of an
+inherent dimensionality reduction: the computational effort is focused
+on the contact interface whereas the FEM requires discretization of
+the volume of the solids in contact. In addition, the use of a
+half-space geometry provides a translational invariance: the
+computation of equilibrium solutions can then be accelerated with the
+fast-Fourier Transform.
+
+However, because of the roughness, the total contact load is
+distributed over a small area and local contact pressures are expected
+to cause non-linear material behavior, such as plasticity. In such a
+case, volume integral methods can be employed to account for plastic
+deformation. These enjoy properties analogous to boundary integral
+methods and can be accelerated with a Fourier approach
+[@frerot_fourieraccelerated_2019].
+
+Taking plasticity into account is necessary in the accurate
+description of contact interfaces for the understanding of friction
+and wear. Moreover, high performance implementations are needed to
+model realistic rough surfaces.
+
+``Tamaas`` is a C++ library with a Python interface, developed in the
+[Solid Mechanics Simulation Lab](https://www.epfl.ch/labs/lsms) at
+EPFL, that implements a unique Fourier-accelerated volume integral
+formulation of equilibrium [@frerot_fourieraccelerated_2019] for the
+solution of elastic-plastic rough contact problems. The use of C++
+allows for a particular focus on performance: most loops are
+paralelized using ``Thrust/OpenMP`` and the fast-Fourier transforms
+are computed with ``FFTW3/OpenMP``. Thanks to this, it can handle
+simulations with upwards of 100 million degrees of freedom on a single
+compute node [@frerot_fourieraccelerated_2019].
+
+
+# Acknowledgements
+
+We acknowledge the financial support of the Swiss National Science Foundation (grant #162569 "Contact mechanics of rough surfaces").
 
 # References