@article{10_4153_CMB_2002_020_3,
     author = {Byott, Nigel P. and Elder, G. Griffith},
     title = {Biquadratic {Extensions} with {One} {Break}},
     journal = {Canadian mathematical bulletin},
     pages = {168--179},
     year = {2002},
     volume = {45},
     number = {2},
     doi = {10.4153/CMB-2002-020-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2002-020-3/}
}