@article{MM2_1991__72_1_155651,
     author = {Paolo Aluffi},
     title = {Some characteristic numbers for nodal and cuspidal plane curves of any degree.},
     journal = {Manuscripta mathematica},
     pages = {425--444},
     publisher = {mathdoc},
     volume = {72},
     number = {1},
     year = {1991},
     zbl = {0749.14035},
     url = {http://geodesic.mathdoc.fr/item/MM2_1991__72_1_155651/}
}