1. J. Boni and P. Shapiro, ?Hyperfunction solutions of the Cauchy problem,? Matematika,17, No. 2, 98?107 (1973).
2. M. G. Zaidenberg, S. G. Krein, P. A. Kuchment, and A. A. Pankov, ?Banach bundles and linear operators,? Usp. Mat. Nauk,30, No. 5, 101?157 (1975).
3. S. Bochner and W. T. Martin, Functions of Several Complex Variables [Russian translation], IL, Moscow (1951).
4. M. A. Lavrent'ev and B. V. Shabat, Methods of the Theory of Functions of a Complex Variable [in Russian], Fizmatgiz, Moscow (1958).