@article{10_4064_aa139_3_6,
     author = {Pingzhi Yuan and Yuan Li},
     title = {Squares in {Lehmer} sequences and the
 {Diophantine} equation $Ax^4-By^2=2$},
     journal = {Acta Arithmetica},
     pages = {275--302},
     publisher = {mathdoc},
     volume = {139},
     number = {3},
     year = {2009},
     doi = {10.4064/aa139-3-6},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa139-3-6/}
}