Ռոմեն Շահբաղյան

 International Conf. On Complex Analysis and its Appl. To Partial Diff. Equations: IV (1984) and V (1988) Halle (DDR), 
 Chech-Sov Symposium on Appl. of Meth. of Func. Anal. in Math. Ph. VIII (1983) and X (1988) Czechoslovakia (Praha, Bratislava), 
 International Conference on Mathematic (1994), Tehran (Iran), 
 International Conf. on Partial Diff. Equations (1996) Potsdam, (2000) Berlin (Germany).