TY - JOUR AU - L. Dovniković TI - The realization of the continuity principle in the relativistic pencils of circles and spheres JO - Novi Sad Journal of Mathematics PY - 1999 SP - 97 EP - 107 VL - 29 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/NSJOM_1999_29_3a_9/ ID - NSJOM_1999_29_3a_9 ER -