1. Ando, T., Totally positive matrices, Linear Algebra and Appl. 90 (1987), 165–219.
2. Barmish, B. R., New Tools for Robustness of Linear Systems, Macmillan, New York, 1994.
3. Bialas, S., and J. Garloff, Intervals of P-matrices and related matrices, Linear Algebra and Appl. 58 (1984), 33–41.
4. Gantmacher, F. R., and M. G. Krein, Oszillationsmatrizen, Oszillationskerne und kleine Schwingungen mechanischer Systeme, Akademie-Verlag, Berlin, 1960.
5. Garloff, J., Totally nonnegative interval matrices, in Interval Mathematics1980, K. Nickel (ed.), Academic Press, New York, 1980, 317–327.