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Free-basis-set method to describe the helium atom confined by a spherical box with finite and infinite potentials

César Martínez-Flores, Michael-Adán Martínez-Sánchez, Rubicelia Vargas and Jorge Garza

Eur. Phys. J. D, 75 3 (2021) 100

DOI: https://doi.org/10.1140/epjd/s10053-021-00110-x

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