@article{ASNSP_1998_4_27_2_309_0,
     author = {Ha Tien Ngoan and Kong, Dexing and Tsuji, Mikio},
     title = {Integration of {Monge-Amp\`ere} equations and surfaces with negative gaussian curvature},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {309--330},
     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 27},
     number = {2},
     year = {1998},
     mrnumber = {1664691},
     zbl = {0978.53006},
     language = {en},
     url = {http://archive.numdam.org/item/ASNSP_1998_4_27_2_309_0/}
}