Error bounds for Newton refinement of solutions to algebraic riccati equations. - Charles S. Kenney; Alan J. Laub; Matthew R. Wette (Math. Control. Signals Syst., 1990)

Algorithm 705; a FORTRAN-77 software package for solving the Sylvester matrix equation AXBT + CXDT = E. - Judith D. Gardiner; Matthew R. Wette; Alan J. Laub; James J. Amato; Cleve B. Moler (ACM Trans. Math. Softw., 1992)