This paper is fairly interesting, and has reasonably extensive references:

http://www.mat.ub.edu/EMIS/journals/ELA/ela-articles/articles/vol9_pp255-269.pdf

This link works:

http://repository.uwyo.edu/ela/vol9/iss1/21/

The paper is:

<cite authors="Naqvi, Sarah Carnochan; McDonald, Judith J.">_Naqvi, Sarah Carnochan; McDonald, Judith J._, [**The combinatorial structure of eventually nonnegative matrices**](http://dx.doi.org/10.13001/1081-3810.1088), Electron. J. Linear Algebra 9, 255-269 (2002). [ZBL1039.15003](https://zbmath.org/?q=an:1039.15003).</cite>