References
- Aronszajn , N. 1950 . Trans. Amer. Math. Soc . 68 : 337 – 404 .
- Ju M , Berezanskil . 1968 . Expansions in Eigen Functions of Self Adjoint Operators . Transl. of Math. Monographs , 17
- Pollard , H. 1946 . Duke Math. J . 13 : 307 – 330 .
- Saitoh , S. 1982 . Proc. Japan Acad . 56 : 361 – 364 .
- Titchmarsh , E.C. 1962 . Introduction to the Theory of Fourier Transforms , Oxford : Clarendon Press .