TY - JOUR AU - Yu. Yu. Finkel'shtein TI - Klein polygons and reduced regular continued fractions JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1993 SP - 198 EP - 200 VL - 48 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1993_48_3_a11/ LA - en ID - RM_1993_48_3_a11 ER -