@article{article90fb3d48,
title   = {Maximal and stabilizing hermitian solutions for discrete-time coupled algebraic Riccati equations},
author = {Costa, Oswaldo Luiz do Valle and Marques, Ricardo Paulino},
year = {1999},
doi = {10.1007/pl00009849},
journal   = {Mathematics of Control, Signals, and Systems}
}