@article{MAN_1991__289_4_164769,
     author = {Marc Coppens},
     title = {The gonality of general smooth curves with a prescribed plane nodal model.},
     journal = {Mathematische Annalen},
     pages = {89--94},
     publisher = {mathdoc},
     volume = {289},
     number = {4},
     year = {1991},
     zbl = {0697.14019},
     url = {http://geodesic.mathdoc.fr/item/MAN_1991__289_4_164769/}
}