@article{10_4064_aa171_4_5,
     author = {Tom Fisher},
     title = {On families of 9-congruent elliptic curves},
     journal = {Acta Arithmetica},
     pages = {371--387},
     publisher = {mathdoc},
     volume = {171},
     number = {4},
     year = {2015},
     doi = {10.4064/aa171-4-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa171-4-5/}
}