@article{BUMI_2011_9_4_2_a10,
     author = {Nacinovich, Mauro},
     title = {The {Contribution} of {A.} {Andreotti} to the {Theory} of {Complexes} of p.d.o.'s},
     journal = {Bollettino della Unione matematica italiana},
     pages = {301--306},
     publisher = {mathdoc},
     volume = {Ser. 9, 4},
     number = {2},
     year = {2011},
     zbl = {1228.01044},
     mrnumber = {2840621},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BUMI_2011_9_4_2_a10/}
}