@article{GDZPPN002445514,
title = {On the invariants of base changes of pencils of curves, II.},
journal = {Mathematische Zeitschrift},
volume = {221},
year = {1996},
pages = {655-676},
zbl = {0864.14016},
url = {http://dml.mathdoc.fr/item/GDZPPN002445514}
}
Tan, Sheng-Li. On the invariants of base changes of pencils of curves, II.. Mathematische Zeitschrift, Tome 221 (1996) pp. 655-676. http://gdmltest.u-ga.fr/item/GDZPPN002445514/