@article{JRAM_1986__367_152825,
     author = {B. Brindza and K. Gy\"ory and R. Tijdeman},
     title = {On the {Catalan} equation over algebraic number fields.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {90--102},
     publisher = {mathdoc},
     volume = {367},
     year = {1986},
     zbl = {0577.10017},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1986__367_152825/}
}