1. In Memoriam: Olga Taussky-Todd;Luchins;Notices AMS,1996
2. Matrix Analysis;Horn,1991
3. The theory of nonnegative and oscillating matrices;Koteljanskií;Translations of the AMS,1963
4. Topics in Matrix Analysis;Horn,1991
5. Some properties of totally positive matrices;Cryer;Linear Algebra Appl.,1976