@article{10_4153_CJM_2004_035_5,
     author = {Lim, Yongdo},
     title = {Best {Approximation} in {Riemannian} {Geodesic} {Submanifolds} of {Positive} {Definite} {Matrices}},
     journal = {Canadian journal of mathematics},
     pages = {776--793},
     year = {2004},
     volume = {56},
     number = {4},
     doi = {10.4153/CJM-2004-035-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2004-035-5/}
}