° 2005 RAMAD 6 

International conference on:

Mathématical ecology and Modeling
Lomé, December 12 - 17, 2005 , Togo University

° 2004 RAMAD 5 

International conference on:  

Modelling and Simulation in environment
Dakar University,  Dakar Auguste 02 -  07,  2004, Senegal

° 2003 RAMAD 4 
        International conference on:  
        Control and Stabilization od systems. Applications
       Ouagadougou University,  August  03 - 14,  2003,  Burkina Faso

° 2003 Workshop du RAMAD 
        International Workshop on:  
        Analyze of Partial Differential Equations and its Applications
        Lomé University, April 07 -12, 2003, Lomé, Togo

° 2003 CARO 1 

First African Conference of Operations research (ACOR)
Ouagadougou University, January  05 - 08,  2003, Ouagadougou, Burkina Faso

° 2002 RAMAD 3
       International conference on:  
        Biomathematics
        Mali University, July 1 - 10, 2002, Bamako, MALI

° 2001 RAMAD 2
       International conference on:  
       Mathematics of decision making and planning
       ABDOU MOUMOUNI University, June  02 - 07,  2001, Niamey, Niger

° 2000 RAMAD 1
       International conference on:  
       Modelling and Numerical simulation in environment
       Ouagadougou University, July 10 - 14, 2000, Ouagadougou, Burkina Faso.