TY - JOUR AU - Marcela Sanmartino TI - The Calderón Projector for an Elliptic Operator in Divergence Form. JO - The journal of Fourier analysis and applications [[Elektronische Ressource]] PY - 2001 SP - 615 EP - 632 VL - 7 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JFAA_2001__7_4_59701/ ID - JFAA_2001__7_4_59701 ER -