@article{JRAM_1974__0268_0269_151448,
     author = {A. Schinzel},
     title = {Primitive divisors of the expression {An} - {Bn} in algebraic number fields.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {27--33},
     publisher = {mathdoc},
     volume = {0268_0269},
     year = {1974},
     zbl = {0287.12014},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1974__0268_0269_151448/}
}