@incollection{AST_1993__217__139_0,
     author = {Kato, Masahide},
     title = {Geometric structures and characteristic forms},
     booktitle = {Colloque d'analyse complexe et g\'eom\'etrie - Marseille, janvier 1992},
     series = {Ast\'erisque},
     pages = {139--150},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {217},
     year = {1993},
     language = {en},
     url = {http://archive.numdam.org/item/AST_1993__217__139_0/}
}