@article{10_4064_aa170_4_3,
     author = {Yi Ouyang and Shenxing Zhang},
     title = {On second 2-descent and non-congruent numbers},
     journal = {Acta Arithmetica},
     pages = {343--360},
     publisher = {mathdoc},
     volume = {170},
     number = {4},
     year = {2015},
     doi = {10.4064/aa170-4-3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa170-4-3/}
}