1. Diagonally implicit Runge-Kutta methods for stiff o.d.e.’s;Alexander, Roger;SIAM J. Numer. Anal.,1977
2. Cyclic composite multistep predictor-corrector methods;Donelson, John, III.;SIAM J. Numer. Anal.,1971
3. 𝐴-stable methods and Padé approximations to the exponential;Ehle, Byron L.;SIAM J. Math. Anal.,1973
4. B. L. Ehle, Some Results on Exponential Approximation and Stiff Equations, Report 77, Dept. of Math., Univ. of Victoria, Canada, 1974.
5. Two-parameter, arbitrary order, exponential approximations for stiff equations;Ehle, Byron L.;Math. Comp.,1975