Absolute gradient bound for surfaces of constant mean curvature
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 4, Tome 21 (1994) no. 1, pp. 1-9. 
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     title = {Absolute gradient bound for surfaces of constant mean curvature},
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     publisher = {Scuola normale superiore},
     volume = {Ser. 4, 21},
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     mrnumber = {1276760},
     zbl = {0809.53010},
     language = {en},
     url = {http://archive.numdam.org/item/ASNSP_1994_4_21_1_1_0/}
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Chua, Kok Seng. Absolute gradient bound for surfaces of constant mean curvature. Annali della Scuola Normale Superiore di Pisa - Classe di Scienze, Série 4, Tome 21 (1994) no. 1, pp. 1-9. http://archive.numdam.org/item/ASNSP_1994_4_21_1_1_0/

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