@article{10_4064_aa_70_4_343_375,
     author = {Wolfgang Schmidt},
     title = {Northcott's theorem on heights {II.} {The} quadratic case},
     journal = {Acta Arithmetica},
     pages = {343--375},
     publisher = {mathdoc},
     volume = {70},
     number = {4},
     year = {1995},
     doi = {10.4064/aa-70-4-343-375},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-70-4-343-375/}
}