REFERENCES
- GABASOV , R. , and KIRILLOVA , F. M. , 1964 , Engng Cybernetics , 2 , 111 .
- KATZ , S. , and KRANC , G. M. , 1969 , I.E.E.E. Trans. , 14 , 255 .
- KRANC , G. M. , and SARACHIK , P. E. , 1963 , J. bas. Engng , 85 , 143 .
- SARACHIK , P. E. , and KRANC , G. M. , 1964 , Proc. 1963 I.F.A.C. Cong. ( London Butterworth ), p. 306 .
- SILMBERG , J. , and MIZUKAMI , K. , 1970 , Int. J. Control , 12 , 465 ; 1971 a, J. Franklin Inst., 292, 245 ; 1971 b, Int. J. Control, 13, 1105 .
- SWIGER , J. M. , 1966 , Advances in Control System , Vol. III , edited by C. T. Leondes ( New York Academic Press ), p. 151 .