@article{MOMA_1978__85_177854,
     author = {E. Heppner},
     title = {\"Uber {Primzahlen} der {Form} n2n + 1 bzw. p2p +1.},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {99--104},
     publisher = {mathdoc},
     volume = {85},
     year = {1978},
     zbl = {0378.10023},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1978__85_177854/}
}