diff --git a/biblio/chapters/literature.tex b/biblio/chapters/literature.tex
index cf05bc6..ad2f6fe 100644
--- a/biblio/chapters/literature.tex
+++ b/biblio/chapters/literature.tex
@@ -185,21 +185,32 @@ representation of the fluid.
 
 \subsubsection{Porosity modelling}
 
-\cite{jiang2007mesoscale}
-\cite{jutzi2008numerical}
-\cite{shao2010}
-\cite{altomare2014numerical}
-\cite{kunz2016study}
-\textbf{\cite{ren2016improved}}
+\cite{jiang2007mesoscale}: Meso-scale SPH model of flow in isotropic porous
+media; randomly placed particles with repulsive force; reasonable results.
+
+%\cite{jutzi2008numerical}: not applicable, impacts on solid bodies
+
+\cite{shao2010}: incompressible flow with porous media; Navier-Stokes,
+Volume-Averaged $k-\varepsilon$; porosity model is same as
+\cite{troch1999development} but without inertia term
+\parencite{huang2003structural}
+
+\cite{altomare2014numerical} "microscopic" model of breakwater
+
+\cite{kunz2016study} comparison of sph model with micro-model experiments
+
+\textbf{\cite{ren2016improved}} VAFANS equations to solve incompressible
+turbulent flow with porous media. Same porosity model as \cite{shao2010}
+
 \cite{pahar2016modeling}
 \cite{peng2017multiphase}
-\cite{wen20183d}
+\cite{wen20183d}: 3D VAFANS
 \cite{kazemi2020sph}
 
 \subsubsection{Wave generation}
 
 \cite{yim2008numerical}
-\cite{altomare2017long}
+\textbf{\cite{altomare2017long}}
 \cite{wen2018non}
 
 \subsection{VOF models}
diff --git a/biblio/library.bib b/biblio/library.bib
index b0adaa9..5843ae0 100644
--- a/biblio/library.bib
+++ b/biblio/library.bib
@@ -954,3 +954,14 @@
   year={1994}
 }
 
+@article{huang2003structural,
+  title={Structural permeability effects on the interaction of a solitary wave and a submerged breakwater},
+  author={Huang, Ching-Jer and Chang, Hsing-Han and Hwung, Hwung-Hweng},
+  journal={Coastal engineering},
+  volume={49},
+  number={1-2},
+  pages={1--24},
+  year={2003},
+  publisher={Elsevier}
+}
+