no. 2
Variétés localement réductives et variétés G ¯,H ¯-structurées
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 4, Tome 10 (1983) no. 2, pp. 181-196. 
@article{ASNSP_1983_4_10_2_181_0,
     author = {Cornu, Philippe},
     title = {Vari\'et\'es localement r\'eductives et vari\'et\'es $\overline{G}, \overline{H}$-structur\'ees},
     journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze},
     pages = {181--196},
     publisher = {Scuola normale superiore},
     volume = {4e s{\'e}rie, 10},
     number = {2},
     year = {1983},
     zbl = {0524.53021},
     mrnumber = {728433},
     language = {fr},
     url = {archive.numdam.org/item/ASNSP_1983_4_10_2_181_0/}
}
Cornu, Philippe. Variétés localement réductives et variétés $\overline{G}, \overline{H}$-structurées. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 4, Tome 10 (1983) no. 2, pp. 181-196. http://archive.numdam.org/item/ASNSP_1983_4_10_2_181_0/

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