@article{10_4064_aa153_4_3,
     author = {Florian Luca},
     title = {On the system of {Diophantine} equations $a^2+b^2=(m^2+1)^r$ and $a^x+b^y=(m^2+1)^z$},
     journal = {Acta Arithmetica},
     pages = {373--392},
     publisher = {mathdoc},
     volume = {153},
     number = {4},
     year = {2012},
     doi = {10.4064/aa153-4-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa153-4-3/}
}