For citations:
Fassari S., Gadella M., Glasser M.L., Nieto L.M., matfa62@gmail.com F. Level crossings of eigenvalues of the Schrodinger Hamiltonian of the isotropic harmonic¨ oscillator perturbed by a central point interaction in different dimensions. Nanosystems: Physics, Chemistry, Mathematics. 2018;9(2):179–186. https://doi.org/10.17586/2220-8054-2018-9-2-179-186
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