%0 Journal Article %A M. N. Kultur %T The Formation of a Differential Equation Involving the Ratio of the Θ-theta Functions %J Mathematica balkanica %D 2000 %P 227 %V 14 %N 3-4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MABA_2000_14_3-4_a3/ %F MABA_2000_14_3-4_a3