@misc{Peiyan_Niu_Normal,
 author={Peiyan Niu and Xu Yan},
 address={Երևան},
 howpublished={online},
 publisher={Հայաստանի ԳԱԱ},
 title={Normal families of meromorphic functions and shared functions},
 type={Հոդված},
 keywords={Mathematics, Science},
}