Confined orbitals in fullerenes and quantum dots calculated by analytic continuation method Milagros F. Morcillo-Arencibia, José Manuel Alcaraz-Pelegrina and Antonio J. Sarsa Eur. Phys. J. D, 75 3 (2021) 109 Published online: 25 March 2021 DOI: 10.1140/epjd/s10053-021-00096-6