@article{CMUC_2003__44_1_a0,
     author = {Khosravi, Amir and Khosravi, Behrooz},
     title = {On the {Diophantine} equation $\frac{q^n-1}{q-1}=y$},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {1--7},
     publisher = {mathdoc},
     volume = {44},
     number = {1},
     year = {2003},
     mrnumber = {2045841},
     zbl = {1097.11015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2003__44_1_a0/}
}