1.b> .i> propagater> + -orr> 1 2; 2.b> ; to find the propagator of this slander ; 3.b> 1) , ; 2) , (i>); 4.b> , .
2.b> ; to find the propagator of this slander ;
3.b> 1) , ;
2) , (i>);
4.b> , .
Developed by George Keretchashvili