1. Existence and generic properties of L2 approximants for linear systems;Baratchart;IMA J. Math. Cont. & Information,1986
2. L. Baratchart, Recent and new results in rational L2 approximation, to appear in N.A.T.O. A.S.I. Series.
3. Sur l'Approximation Rationnelle L2 pour les Systèmes Dynamiques Linéaires;Baratchart,1987
4. Introduction to Topology;Borisovich,1985
5. Analytic Functions of Several Complex Variables;Gunning,1965