References
C. M. Bender andT. T. Wu:Phys. Rev. Lett.,21, 406 (1968).
C. M. Bender andT. T. Wu:Phys. Rev.,184, 1231 (1969).
B. Simon:Ann. of Phys.,58, 76 (1970).
J. J. Loeffel, A. Martin, B. Simon andA. S. Wightman:Phys. Lett.,30 B, 656 (1969).
S. Graffi, V. Grecchi andB. Simon:Phys. Lett.,32 B, 631 (1970).
S. N. Biswas, K. Datta, R. P. Saxena, P. K. Srivastava andV. S. Verma:Phys. Rev. D, 3617 (1971); Delhi University, preprint (1971).
S. N. Biswas, K. Datta, R. P. Saxena, P. K. Srivastava andV. S. Verma: Delhi University, preprint (1971).
E. T. Whittaker andG. N. Watson:A Course of Modern Analysis, Chap. XII (Cambridge, 1952).
E. C. Titchmarsh:Eigenfunction Expansions, Chap. VII (Oxford, 1962).
P. Lu:Journ. Chem. Phys.,47, 815 (1967).
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Mathews, P.M., Eswaran, K. On the energy levels of the anharmonic oscillator. Lett. Nuovo Cimento 5, 15–18 (1972). https://doi.org/10.1007/BF02832763
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DOI: https://doi.org/10.1007/BF02832763