TY - JOUR AU - Šír, Zbyněk TI - Properties of operators occurring in the Penrose transform JO - Commentationes Mathematicae Universitatis Carolinae PY - 2001 SP - 681 EP - 690 VL - 42 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMUC_2001__42_4_a8/ LA - en ID - CMUC_2001__42_4_a8 ER -