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2. S. Bochner, Lectures on Fourier Integrals (Princeton Univ. Press, Princeton, 1959; Fizmatgiz, Moscow, 1962).
3. I. A. Kipriyanov, “Fourier-Bessel Transforms and Imbedding Theorems for Weight Classes,” Trudy Mat. Inst. im. V.A. Steklova Akad. Nauk SSSR 79, 130–213 (1966).
4. A. N. Tikhonov and A. A. Samarskii, Equations of Mathematical Physics (Pergamon, Oxford, 1964; Nauka, Moscow, 1972).
5. B. M. Levitan, “Expansion in Fourier Series and Integrals with Bessel Functions,” Usp. Mat. Nauk 6(2), 102–143 (1951).