@article{CLTM_2002_2002_1_a1,
     author = {Hartshorne, Robin},
     title = {Algunos ejemplos de ligaduras {Gorenstein} en codimensi\'on tres.},
     journal = {Collectanea mathematica},
     pages = {21-48},
     publisher = {mathdoc},
     volume = {53},
     number = {1},
     year = {2002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CLTM_2002_2002_1_a1/}
}