diff --git a/biblio/library.bib b/biblio/library.bib
index 1280ab4..bfc329a 100644
--- a/biblio/library.bib
+++ b/biblio/library.bib
@@ -550,7 +550,7 @@
 
 @article{biolchi2016,
 	AUTHOR = {Biolchi, S. and Furlani, S. and Antonioli, F. and Baldassini, N. and Causon Deguara, J. and Devoto, S. and Di Stefano, A. and Evans, J. and Gambin, T. and Gauci, R. and Mastronuzzi, G. and Monaco, C. and Scicchitano, G.},
-	TITLE = {Boulder accumulations related to extreme wave events \hack{\newline} on the eastern coast of Malta},
+	TITLE = {Boulder accumulations related to extreme wave events on the eastern coast of Malta},
 	JOURNAL = {Natural Hazards and Earth System Sciences},
 	VOLUME = {16},
 	YEAR = {2016},
@@ -573,3 +573,17 @@
 	author = {Songdong Shao},
 	keywords = {ISPH, Porous flow, Wave damping, Breakwater},
 }
+
+@article{hsu2002,
+	title = {A numerical model for wave motions and turbulence flows in front of a composite breakwater},
+	journal = {Coastal Engineering},
+	volume = {46},
+	number = {1},
+	pages = {25-50},
+	year = {2002},
+	issn = {0378-3839},
+	doi = {https://doi.org/10.1016/S0378-3839(02)00045-5},
+	url = {https://www.sciencedirect.com/science/article/pii/S0378383902000455},
+	author = {Tian-Jian Hsu and Tsutomu Sakakiyama and Philip L.-F. Liu},
+	keywords = {Composite breakwater, Wave forces, Breaking wave, Turbulence, Pore pressure, Porous media, Numerical modelling},
+}
diff --git a/biblio/main.tex b/biblio/main.tex
index e562123..76d5b0e 100644
--- a/biblio/main.tex
+++ b/biblio/main.tex
@@ -50,6 +50,9 @@ Très bien: \cite{huntley1999use,tatavarti1989incoming}
 sumer2000experimental,kim2005neural,troch1999development,koley2020numerical,
 losada1979joint,lara2008wave,losada2008numerical}
 
+\paragraph{breakwater model} \cite{hsu2002}
+
+
 \subsection{Block displacement}
 \paragraph{boulder transport by waves} \cite{erdmann2018boulder,may2015block,
 weiss2012mystery,weiss2015untangling,zainali2015boulder,zainali2016high}