@article{10_21136_CMJ_1979_101578,
     author = {Hartfiel, Darald J. and Smith, Patricia L.},
     title = {Remarks on the rows and columns of $P$ in the matrix equation $A=PP^*$},
     journal = {Czechoslovak Mathematical Journal},
     pages = {57--61},
     publisher = {mathdoc},
     volume = {29},
     number = {1},
     year = {1979},
     doi = {10.21136/CMJ.1979.101578},
     mrnumber = {518140},
     zbl = {0431.15017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1979.101578/}
}