@article{VM_2003_5_1_a3,
     author = {G. Lucca},
     title = {Representing {Seashells} {Surface}},
     journal = {Visual Mathematics},
     publisher = {mathdoc},
     volume = {5},
     number = {1},
     year = {2003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/VM_2003_5_1_a3/}
}