no. 4
Discrete approximation of the Mumford-Shah functional in dimension two
ESAIM: Modélisation mathématique et analyse numérique, Tome 33 (1999) no. 4, pp. 651-672. 
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     pages = {651--672},
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     year = {1999},
     mrnumber = {1726478},
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     url = {http://archive.numdam.org/item/M2AN_1999__33_4_651_0/}
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Chambolle, Antonin; Dal Maso, Gianni. Discrete approximation of the Mumford-Shah functional in dimension two. ESAIM: Modélisation mathématique et analyse numérique, Tome 33 (1999) no. 4, pp. 651-672. http://archive.numdam.org/item/M2AN_1999__33_4_651_0/

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