@article{CMH_1993__68_2_140296,
     author = {Dino J. Lorenzini},
     title = {The characteristic polynomial of a monodromy transformation attached to a family of curves.},
     journal = {Commentarii mathematici Helvetici},
     pages = {111--137},
     publisher = {mathdoc},
     volume = {68},
     number = {2},
     year = {1993},
     zbl = {0801.14006},
     url = {http://geodesic.mathdoc.fr/item/CMH_1993__68_2_140296/}
}