1. Completely Positive Matrices;Berman,2003
2. Introductory Combinatorics;Brualdi,1999
3. Combinatorial matrix theory;Brualdi,1991
4. An interesting face of the polytope of doubly stochastic matrices;Brualdi;Linear and Multilinear Algebra,1985
5. A First Course in Stochastic Processes;Karlin,1975