1. A geometric approach to the Carlson problem;Compta;SIAM J. Matrix Anal. Appl.,2000
2. W. Fulton, Eigenvalues of sums of Hermitian matrices (after A. Klyachko), Séminaire Bourbaki, vol. 1997/8, Astérisque no. 252 (1998), Exp. no. 845, 5, pp. 225–269
3. Eigenvalues, invariant factors, highest weights, and Schubert calculus;Fulton;Bull. Amer. Math. Soc.,2000
4. Unsolved problems in matrix and operator Theory II. Partial multiplicities for products;Gohberg;Integral Equations Operator Theory,1979
5. Invariant Subspaces of Matrices with Applications;Gohberg,1986