@article{10_4064_aa101_3_2,
     author = {Pingzhi Yuan},
     title = {On the number of solutions of simultaneous {Pell} equations},
     journal = {Acta Arithmetica},
     pages = {215--221},
     publisher = {mathdoc},
     volume = {101},
     number = {3},
     year = {2002},
     doi = {10.4064/aa101-3-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa101-3-2/}
}