@article{IM_1983__74_143070,
     author = {N.O. Nygaard},
     title = {The {Tate} conjecture for ordinary {K3} surfaces over finite fields.},
     journal = {Inventiones mathematicae},
     pages = {213--238},
     publisher = {mathdoc},
     volume = {74},
     year = {1983},
     zbl = {0557.14002},
     url = {http://geodesic.mathdoc.fr/item/IM_1983__74_143070/}
}