no. 1
Stable G 2 bundles and algebraically completely integrable systems
Compositio Mathematica, Tome 92 (1994) no. 1, pp. 43-60. 
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     title = {Stable $G_2$ bundles and algebraically completely integrable systems},
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     volume = {92},
     number = {1},
     year = {1994},
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     language = {en},
     url = {http://archive.numdam.org/item/CM_1994__92_1_43_0/}
}
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Katzarkov, L.; Pantev, T. Stable $G_2$ bundles and algebraically completely integrable systems. Compositio Mathematica, Tome 92 (1994) no. 1, pp. 43-60. http://archive.numdam.org/item/CM_1994__92_1_43_0/

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