TY - JOUR AU - Aubin, Jean-Pierre TI - Abstract boundary-value operators and their adjoints JO - Rendiconti del Seminario Matematico della Università di Padova PY - 1970 SP - 1 EP - 33 VL - 43 PB - Seminario Matematico of the University of Padua UR - http://www.numdam.org/item/RSMUP_1970__43__1_0/ LA - en ID - RSMUP_1970__43__1_0 ER -