diff --git a/Cages/W.bib b/Cages/W.bib
index 3493003..f50bd9b 100644
--- a/Cages/W.bib
+++ b/Cages/W.bib
@@ -1,3 +1,17 @@
+@article{Walruses,
+  title = {A new bio-inspired metaheuristic algorithm for solving optimization problems based on walruses behavior},
+  volume = {13},
+  ISSN = {2045-2322},
+  url = {http://dx.doi.org/10.1038/s41598-023-35863-5},
+  DOI = {10.1038/s41598-023-35863-5},
+  number = {1},
+  journal = {Scientific Reports},
+  publisher = {Springer Science and Business Media LLC},
+  author = {Trojovský,  Pavel and Dehghani,  Mohammad},
+  year = {2023},
+  month = may 
+}
+
 @incollection{Wasps,
   title={Wasp swarm optimization of logistic systems},
   author={Pinto, Pedro and Runkler, Thomas A and Sousa, Jo{\~a}o M},
diff --git a/README.md b/README.md
index 9fb8551..5b5d3de 100644
--- a/README.md
+++ b/README.md
@@ -381,6 +381,7 @@ earlier mention of a listed method, please see the bottom of the page on how to
 - Carlos Fonseca - University of Coimbra, Portugal
 - Ciniro Nametala - UFMG, Brazil
 - Christian L. Camacho Villalón - ULB, Brussels
+- Denis Pallez, University Cotre d'Azur, France
 - Eduardo Hauck - UFJF, Brazil
 - Fabio Daolio - University of Stirling, Scotland UK
 - Fernanda Takahashi - UFMG, Brazil
diff --git a/README_maker/README_Maintainers_and_Contributors.md b/README_maker/README_Maintainers_and_Contributors.md
index d055581..d07f1f4 100644
--- a/README_maker/README_Maintainers_and_Contributors.md
+++ b/README_maker/README_Maintainers_and_Contributors.md
@@ -14,6 +14,7 @@
 - Carlos Fonseca - University of Coimbra, Portugal
 - Ciniro Nametala - UFMG, Brazil
 - Christian L. Camacho Villalón - ULB, Brussels
+- Denis Pallez, University Cotre d'Azur, France
 - Eduardo Hauck - UFJF, Brazil
 - Fabio Daolio - University of Stirling, Scotland UK
 - Fernanda Takahashi - UFMG, Brazil