no. 2
On the classical characteristic linear series of plane curves with nodes and cuspidal points : two examples of Beniamino Segre
Compositio Mathematica, Tome 51 (1984) no. 2, pp. 169-183. 
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     author = {Tannenbaum, Allen},
     title = {On the classical characteristic linear series of plane curves with nodes and cuspidal points : two examples of {Beniamino} {Segre}},
     journal = {Compositio Mathematica},
     pages = {169--183},
     publisher = {Martinus Nijhoff Publishers},
     volume = {51},
     number = {2},
     year = {1984},
     mrnumber = {739731},
     zbl = {0556.14008},
     language = {en},
     url = {http://www.numdam.org/item/CM_1984__51_2_169_0/}
}
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Tannenbaum, Allen. On the classical characteristic linear series of plane curves with nodes and cuspidal points : two examples of Beniamino Segre. Compositio Mathematica, Tome 51 (1984) no. 2, pp. 169-183. http://www.numdam.org/item/CM_1984__51_2_169_0/

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