@article{10_4064_aa152_3_5,
     author = {Sheldon Kamienny and Filip Najman},
     title = {Torsion groups of elliptic curves
 over quadratic fields},
     journal = {Acta Arithmetica},
     pages = {291--305},
     publisher = {mathdoc},
     volume = {152},
     number = {3},
     year = {2012},
     doi = {10.4064/aa152-3-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa152-3-5/}
}