@article{CLTM_2009_2009_1_a12,
     author = {Vito Geramita, Anthony and  Harbourne, Brian and  Migliore, Juan},
     title = {Classifying {Hilbert} functions of fat point subschemes in {P^2.}},
     journal = {Collectanea mathematica},
     pages = {159-192},
     publisher = {mathdoc},
     volume = {60},
     number = {2},
     year = {2009},
     zbl = {1186.14008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CLTM_2009_2009_1_a12/}
}