@article{10_4064_aa100_1_4,
     author = {Florian Luca and P. G. Walsh},
     title = {Squares in {Lehmer} sequences and
some {Diophantine} applications},
     journal = {Acta Arithmetica},
     pages = {47--62},
     publisher = {mathdoc},
     volume = {100},
     number = {1},
     year = {2001},
     doi = {10.4064/aa100-1-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa100-1-4/}
}