TY - JOUR AU - I. M. Krichever TI - Analytic theory of difference equations with rational and elliptic coefficients and the Riemann--Hilbert problem JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 2004 SP - 1117 EP - 1154 VL - 59 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_2004_59_6_a6/ LA - en ID - RM_2004_59_6_a6 ER -