no. 1
Actions of group schemes (I)
Compositio Mathematica, Tome 80 (1991) no. 1, pp. 55-74. 
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     author = {Li, Ke-Zheng},
     title = {Actions of group schemes {(I)}},
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     pages = {55--74},
     publisher = {Kluwer Academic Publishers},
     volume = {80},
     number = {1},
     year = {1991},
     mrnumber = {1127059},
     zbl = {0760.14019},
     language = {en},
     url = {http://www.numdam.org/item/CM_1991__80_1_55_0/}
}
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Li, Ke-Zheng. Actions of group schemes (I). Compositio Mathematica, Tome 80 (1991) no. 1, pp. 55-74. http://www.numdam.org/item/CM_1991__80_1_55_0/

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