@article{RLIN_1990_9_1_3_a4,
     author = {Petronio, Carlo},
     title = {Holomorphic automorphisms of the unit ball of a direct sum},
     journal = {Atti della Accademia nazionale dei Lincei. Rendiconti Lincei. Matematica e applicazioni},
     pages = {203--213},
     publisher = {mathdoc},
     volume = {Ser. 9, 1},
     number = {3},
     year = {1990},
     zbl = {0747.46040},
     mrnumber = {500878},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RLIN_1990_9_1_3_a4/}
}