TY - JOUR AU - S. Cicenia AU - A. Drago TI - The organizational structures of geometry in Euclid, L. Carnot and Lobatchevsky. An analysis of Lobatchevsky's geometrical works JO - In memoriam N. I. Lobatschevskii PY - 1995 SP - 116 EP - 124 VL - 3 IS - 2 UR - http://geodesic.mathdoc.fr/item/KUMEM_1995_3_2_a11/ LA - en ID - KUMEM_1995_3_2_a11 ER -