@article{RSMUP_1970__43__1_0,
     author = {Aubin, Jean-Pierre},
     title = {Abstract boundary-value operators and their adjoints},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {1--33},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {43},
     year = {1970},
     mrnumber = {279632},
     zbl = {0247.47042},
     language = {en},
     url = {http://archive.numdam.org/item/RSMUP_1970__43__1_0/}
}