no. 2
Singularity of the moduli space of stable bundles on surfaces
Compositio Mathematica, Tome 100 (1996) no. 2, pp. 125-130. 
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     author = {Nakashima, Tohru},
     title = {Singularity of the moduli space of stable bundles on surfaces},
     journal = {Compositio Mathematica},
     pages = {125--130},
     publisher = {Kluwer Academic Publishers},
     volume = {100},
     number = {2},
     year = {1996},
     mrnumber = {1383462},
     zbl = {0869.14006},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1996__100_2_125_0/}
}
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Nakashima, Tohru. Singularity of the moduli space of stable bundles on surfaces. Compositio Mathematica, Tome 100 (1996) no. 2, pp. 125-130. http://archive.numdam.org/item/CM_1996__100_2_125_0/

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