1. Birkoff, G., Varga, R. S.,Discretization Errors for Well-set Cauchy Problems, I, J. Math. and Physics, Vol. 44, (1965), 1–23, MR 31 #4189.
2. Butcher, J. C.,Implicit Runge-Kutta Processes, Math. Comp., Vol. 18 (1964), 50–64, MR 28 #2641.
3. Dahlquist, G.,A Special Stability Problem for Linear Multistep Methods, BIT, Vol. 3 (1963), 27–43, MR 30 #715.
4. Milne, W. E.,Numerical Solution of Differential Equations, John Wiley & Sons, Inc., New York, 1953, MR 16, p. 864.
5. Obrechkoff, N.,Sur les Quadratures Mecaniques (Bulgarian, French summary), Spisanie Bulgar. Akad. Nauk., Vol. 65 (1942), 191–289, MR 10, p. 70.