%0 Journal Article %A Yi Ouyang %A Shenxing Zhang %T On second 2-descent and non-congruent numbers %J Acta Arithmetica %D 2015 %P 343-360 %V 170 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa170-4-3/ %R 10.4064/aa170-4-3 %G en %F 10_4064_aa170_4_3