@article{JEMS_2013_15_5_a11,
     author = {Pietro Corvaja and Umberto Zannier},
     title = {Greatest common divisors of $u-1, v-1$ in positive characteristic and rational points on curves over finite fields},
     journal = {Journal of the European Mathematical Society},
     pages = {1927--1942},
     publisher = {mathdoc},
     volume = {15},
     number = {5},
     year = {2013},
     doi = {10.4171/jems/409},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/jems/409/}
}