TY - JOUR AU - Sekanina, Z. TI - Problems of origin and evolution of the Kreutz family of Sun-grazing comets JO - Acta Universitatis Carolinae. Mathematica et Physica PY - 1967 SP - 33 EP - 84 VL - 8 IS - 2 UR - http://geodesic.mathdoc.fr/item/AUCMP_1967_8_2_a4/ LA - en ID - AUCMP_1967_8_2_a4 ER -