REFERENCES
- CHRISTENSEN , G. S. , 1966 , Ph.D. Thesis , University of British Columbia , Vancouver , B.C .
- DESOER , C. A. , 1962 , I.R.E, Trans. Circuit Theory , 9 , 2 .
- KALMAN , K. E. ,BERTRAM, J. E., 1960 , J. bos. Engng , 82 , 397 .
- SAATY , T. L. , and BRAM , J. , 1964 , Nonlinear Mathematics ( New York McGraw-Hill ), p. 37 .
- SANDBERO , J. W. , 1965 , SIAM Review , 7 , 199 .
- ZAMES , G. , 1963 , I.E.E.E. Trans. Circuit Theory , 10 , 392 ,