no. 2
The relaxed energy for S 2 -valued maps and measurable weights
Annales de l'I.H.P. Analyse non linéaire, Tome 23 (2006) no. 2, pp. 135-157. 
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     author = {Millot, Vincent},
     title = {The relaxed energy for ${S}^{2}$-valued maps and measurable weights},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {135--157},
     publisher = {Elsevier},
     volume = {23},
     number = {2},
     year = {2006},
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     zbl = {05024482},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1016/j.anihpc.2005.02.003/}
}
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Millot, Vincent. The relaxed energy for ${S}^{2}$-valued maps and measurable weights. Annales de l'I.H.P. Analyse non linéaire, Tome 23 (2006) no. 2, pp. 135-157. doi : 10.1016/j.anihpc.2005.02.003. http://archive.numdam.org/articles/10.1016/j.anihpc.2005.02.003/

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