@article{MM2_1987__58_155214,
     author = {Antonio Lanteri and Mauro Beltrametti},
     title = {On the 2 and the 3-connectedness of ample divisors on a surface.},
     journal = {Manuscripta mathematica},
     pages = {109--128},
     publisher = {mathdoc},
     volume = {58},
     year = {1987},
     zbl = {0598.14002},
     url = {http://geodesic.mathdoc.fr/item/MM2_1987__58_155214/}
}