@article{ASNSP_1978_4_5_4_683_0,
     author = {Sommese, Andrew John},
     title = {On the rationality of the period mapping},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {683--717},
     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 5},
     number = {4},
     year = {1978},
     mrnumber = {519890},
     zbl = {0396.32004},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1978_4_5_4_683_0/}
}