@article{ASNSP_1991_4_18_1_13_0,
     author = {Do Duc Thai},
     title = {On the $D^\ast $-extension and the {Hartogs} extension},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {13--38},
     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 18},
     number = {1},
     year = {1991},
     mrnumber = {1118219},
     zbl = {0743.32013},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1991_4_18_1_13_0/}
}