@article{ELA_2010__20__a31,
     author = {Liu, Jianzhou and Zhang, Juan and Liu, Yu},
     title = {A new upper bound for the eigenvalues of the continuous algebraic {Riccati} equation},
     journal = {The electronic journal of linear algebra},
     pages = {314--321},
     publisher = {mathdoc},
     volume = {20},
     year = {2010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ELA_2010__20__a31/}
}