Formulae of Fredholm type for solutions of linear equations with generalized Fredholm operator A. Buraczewski — 1969 Studia Mathematica
Determinant system for composite of generalized Fredholm operators A. Buraczewski — 1970 Studia Mathematica
Analytic formulae for determinant systems in Banach spaces A. Buraczewski; R. Sikorski — 1980 Studia Mathematica