no. 1
A O(n) algorithm for projecting a vector on the intersection of a hyperplane and R + n
RAIRO - Operations Research - Recherche Opérationnelle, Tome 31 (1997) no. 1, pp. 7-16. 
@article{RO_1997__31_1_7_0,
     author = {Maculan, Nelson and Minoux, Michel and Plateau, G\'erard},
     title = {A $O(n)$ algorithm for projecting a vector on the intersection of a hyperplane and $R^n_+$},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {7--16},
     publisher = {EDP-Sciences},
     volume = {31},
     number = {1},
     year = {1997},
     mrnumber = {1436180},
     zbl = {0881.90102},
     language = {en},
     url = {http://archive.numdam.org/item/RO_1997__31_1_7_0/}
}
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%A Plateau, Gérard
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Maculan, Nelson; Minoux, Michel; Plateau, Gérard. A $O(n)$ algorithm for projecting a vector on the intersection of a hyperplane and $R^n_+$. RAIRO - Operations Research - Recherche Opérationnelle, Tome 31 (1997) no. 1, pp. 7-16. http://archive.numdam.org/item/RO_1997__31_1_7_0/

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