%0 Journal Article
%A Zhao, Lin-Lin
%A Chen, Guo-Linag
%A Liu, Qing-Bin
%T Least squares (P,Q)-orthogonal symmetric solutions of the matrix equation and its optimal approximation
%J The electronic journal of linear algebra
%D 2010
%P 537-551
%V 20
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ELA_2010__20__a15/
%G en
%F ELA_2010__20__a15