Morame, A. and Truc, F. (2007) “Accuracy on eigenvalues for a Schrödinger operator with a degenerate potential in the semi-classical limit”, CUBO, A Mathematical Journal, 9(2), pp. 1–14. Available at: https://cubo.ufro.cl/index.php/cubo/article/view/1589 (Accessed: 12 October 2025).