@article{10_1007_s10587_012_0036_3,
     author = {Zhao, Yuan-e and Wang, Tingting},
     title = {A note on the number of solutions of the generalized {Ramanujan-Nagell} equation $x^2-D=p^n$},
     journal = {Czechoslovak Mathematical Journal},
     pages = {381--389},
     publisher = {mathdoc},
     volume = {62},
     number = {2},
     year = {2012},
     doi = {10.1007/s10587-012-0036-3},
     mrnumber = {2990183},
     zbl = {1265.11066},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/articles/10.1007/s10587-012-0036-3/}
}