REFERENCES
- BALABANTAN , N. , and BICKART , T. A. , 1969 , Electrical Network Theory ( J. Wiley ), p. 245 .
- PORTER , B. , and BBADSHAW , A. , 1972 a , Int. J. Control , 16 , 101 ; 1972 b, Ibid., 16, 105; 1972 c, Ibid., 16, 109 .
- PORTER , B. , and TAYLOR , F. , 1972 , Int. J. Systems Sci. , 3 , 325 .