@article{IM_1988__92_1_143578,
     author = {C.L. Stewart and J.-H. Evertse and K. Gy\"ory},
     title = {On {S-unit} equations in two unknowns.},
     journal = {Inventiones mathematicae},
     pages = {461--478},
     publisher = {mathdoc},
     volume = {92},
     number = {1},
     year = {1988},
     zbl = {0662.10012},
     url = {http://geodesic.mathdoc.fr/item/IM_1988__92_1_143578/}
}