@article{MM2_1994__84_1_155989,
     author = {Sheng-Li Tan},
     title = {On the {Invariants} of {Base} {Changes} of {Pencils} of {Curves,} {I.}},
     journal = {Manuscripta mathematica},
     pages = {225--244},
     publisher = {mathdoc},
     volume = {84},
     number = {1},
     year = {1994},
     zbl = {0835.14012},
     url = {http://geodesic.mathdoc.fr/item/MM2_1994__84_1_155989/}
}