1. Compartmental Modeling and Tracer Kinetics;Anderson,1983
2. Nonnegative Matrices in the Mathematical Sciences, Classics in Applied Mathematics;Berman,1994
3. Positive Linear Systems;Farina,2000
4. A new statement about the theorem determining the region of eigenvalues of stochastic matrices;Ito;Linear Algebra Appl.,1997
5. F.I. Karpelevich, On the characteristic roots of matrices with nonnegative elements, Izv. Akad. Nauk SSSR Ser. Mat. 15 (1951) 361–383 (in Russian); and in: Eleven Papers Translated from Russian, Vol. 140, American Mathematical Society, Providence, RI, 1988.