@ARTICLE{gravitational2017,
     Title={Gravitational form factors and angular momentum densities in light-front quark-diquark model},
     Author={Narinder Kumar, Chandan Mondal, Neetika Sharma},
     Journal={Eur. Jol. Phys. A},
     Volume={53},
     Number={12},
     Pages={237},
     Publisher={Springer},
     Year={2017}
}