@article{10_4064_aa128_2_1,
     author = {Ashvin Rajan and Fran\c{c}ois Ramaroson},
     title = {Ratios of congruent numbers},
     journal = {Acta Arithmetica},
     pages = {101--106},
     publisher = {mathdoc},
     volume = {128},
     number = {2},
     year = {2007},
     doi = {10.4064/aa128-2-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa128-2-1/}
}