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README.md

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-# African Vulture Optimization Algorithm (AVOA) and Golden Eagle Optimization (GEO) Metaheuristics implementation in Java
+African Vulture Optimization Algorithm (AVOA), Golden Eagle Optimization (GEO), Osprey optimization algorithm (OOA), and Artificial Gorilla Troops optimizer (GTO) Metaheuristics implementation in Java
+=====
+
 African Vulture Optimization Algorithm (AVOA) and Golden Eagle Optimization(GEO) implemented in Java. </br>
 The code is based on the following papers: </br>
 1. African vultures optimization algorithm: A new nature-inspired metaheuristic algorithm for global optimization problems. </br>
@@ -7,5 +9,12 @@ Matlab implementation: https://www.mathworks.com/matlabcentral/fileexchange/9482
 2. Golden eagle optimizer: A nature-inspired metaheuristic algorithm. </br>
    Abdolkarim Mohammadi-Balani, Mahmoud Dehghan Nayeri, Adel Azar, Mohammadreza Taghizadeh-Yazdi https://doi.org/10.1016/j.cie.2020.107050 </br>
 Matlab implementation: https://www.mathworks.com/matlabcentral/fileexchange/84430-golden-eagle-optimizer-toolbox
+3. Osprey optimization algorithm: A new bio-inspired metaheuristic algorithm for solving engineering optimization problems </br>
+   Mohammad Dehghani and Pavel Trojovský https://doi.org/10.3389/fmech.2022.1126450 </br> 
+   Matlab implementation: https://www.mathworks.com/matlabcentral/fileexchange/124555-osprey-optimization-algorithm </br>
+4. Artificial gorilla troops optimizer: A new nature-inspired metaheuristic algorithm for global optimization problems
+   Benyamin Abdollahzadeh, Farhad Soleimanian Gharehchopogh, Seyedali Mirjalili
+   Matlab implementation: https://www.mathworks.com/matlabcentral/fileexchange/95953-artificial-gorilla-troops-optimizer?s_tid=mwa_osa_a
+
 
-The Java implementation is based on the respective Matlab implementation.
+*The Java implementation is based on the respective Matlab implementation.*