@article{RO_2013__47_3_285_0,
     author = {Xia, Yong},
     title = {New results on semidefinite bounds for $\ell _1$-constrained nonconvex quadratic optimization},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {285--297},
     publisher = {EDP-Sciences},
     volume = {47},
     number = {3},
     year = {2013},
     doi = {10.1051/ro/2013039},
     mrnumber = {3143753},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ro/2013039/}
}