TY - JOUR AU - M. N. Kultur TI - The Formation of a Differential Equation Involving the Ratio of the Θ-theta Functions JO - Mathematica balkanica PY - 2000 SP - 227 VL - 14 IS - 3-4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MABA_2000_14_3-4_a3/ ID - MABA_2000_14_3-4_a3 ER -