1. A Theory of Cross-Spaces;Schatten,1950
2. Topological Vector Spaces, Distribution and Kernels;Treves,1967
3. Joint spectra and interpolation of operators;Coburn;J. Functional Analysis,1958
4. Fundamental aspects of defect numbers, root numbers and indices of linear operators;Gohberg;Uspehi Mat. Nauk,1957
5. Spectra of tensor products of operators;Brown,1966