@article{10_4064_ba58_1_2,
     author = {Tsz Ho Chan and Igor E. Shparlinski},
     title = {Visible {Points} on {Modular} {Exponential} {Curves}},
     journal = {Bulletin of the Polish Academy of Sciences. Mathematics},
     pages = {17--22},
     publisher = {mathdoc},
     volume = {58},
     number = {1},
     year = {2010},
     doi = {10.4064/ba58-1-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ba58-1-2/}
}