no. 3
Moduli for stable actions of an abelian group on trees of projective lines
Compositio Mathematica, Tome 90 (1994) no. 3, pp. 267-303. 
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     author = {Brinkmann, Bernd and Herrlich, Frank},
     title = {Moduli for stable actions of an abelian group on trees of projective lines},
     journal = {Compositio Mathematica},
     pages = {267--303},
     publisher = {Kluwer Academic Publishers},
     volume = {90},
     number = {3},
     year = {1994},
     mrnumber = {1272102},
     zbl = {0836.14029},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1994__90_3_267_0/}
}
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Brinkmann, Bernd; Herrlich, Frank. Moduli for stable actions of an abelian group on trees of projective lines. Compositio Mathematica, Tome 90 (1994) no. 3, pp. 267-303. http://archive.numdam.org/item/CM_1994__90_3_267_0/

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