@article{VM_2000_2_3_a6,
     author = {Carlo H. S\'equin},
     title = {" - {To} {Build} a {Twisted} {Bridge} - "},
     journal = {Visual Mathematics},
     publisher = {mathdoc},
     volume = {2},
     number = {3},
     year = {2000},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/VM_2000_2_3_a6/}
}