TY - JOUR AU - Thomas Kalmes TI - Surjectivity of partial differential operators on ultradistributions of Beurling type in two dimensions JO - Studia Mathematica PY - 2010 SP - 87 EP - 102 VL - 201 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm201-1-7/ DO - 10.4064/sm201-1-7 LA - en ID - 10_4064_sm201_1_7 ER -