%0 Journal Article %A K. Ramanathan %T Ramanujan's modular equations %J Acta Arithmetica %D 1989 %P 403-420 %V 53 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-53-4-403-420/ %R 10.4064/aa-53-4-403-420 %G en %F 10_4064_aa_53_4_403_420