Volterra right inverses of linear operators in sequence spaces / by Nguyen Van Mau and Nguyen Vu LuongGeneralized right invertible operators in integral equations with analytic kernals and rotations / by Nguyen Van Mau and Nguyen Minh TuanOn overdetermined Cauchy-Riemann systems in Clifford algebras / by Nguyen Van Mau and Nguyen Canh Luong