@article{MAN_1987__279_3_164333,
     author = {Edward D. Davis and Anthony V. Geramita},
     title = {Birational {Morphisms} to {lP2:} {An} {Ideal-Theoretic} {Perspective.}},
     journal = {Mathematische Annalen},
     pages = {435--448},
     year = {1987},
     volume = {279},
     number = {3},
     zbl = {0657.14003},
     url = {http://geodesic.mathdoc.fr/item/MAN_1987__279_3_164333/}
}