1. Analytic Perturbation Theory for Matrices and Operators;Baumgärtel,1985
2. A minimax theory for overdamped networks;Duffin;J. Rat. Mech. Anal.,1955
3. The resultant matrix and its generalizations, I;Gohberg;Acta Sci. Math. (Szeged),1975
4. Common multiples and common divisors of matrix polynomials, II;Gohberg;Linear and Multilinear Algebra,1982
5. Perturbation theory for divisors of operator polynomials;Gohberg;SIAM J. Math. Anal.,1979