@article{CMH_1985__60_139999,
     author = {Jacques Gasqui and H. Goldschmidt},
     title = {Une caract\'erisation des formes exactes de degr\'e 1 sur les espaces projectifs.},
     journal = {Commentarii mathematici Helvetici},
     pages = {46--53},
     year = {1985},
     volume = {60},
     zbl = {0577.53038},
     url = {http://geodesic.mathdoc.fr/item/CMH_1985__60_139999/}
}