References
- Ergenc T. Demiralp M. An Evolution Operator Approach for the Numerical Solution of Linear O.D.E. Systems 141-152 Proceedings of the International Symposium on Numerical Analysis METU 1989
- Wilf , H. S. 1988 . The Editor's Corner: The Quest for Normality . American Mathematical Mountly , 95 : 113 – 116 .