@misc{Khafagy_S._On,
 author={Khafagy, S. and Serag, H.},
 address={Երևան},
 howpublished={online},
 publisher={Հայաստանի ԳԱԱ},
 title={On the existence of positive weak solution for nonlinear system with singular weights},
 type={Հոդված},
 keywords={Mathematics},
}