“Spurious Solutions in the Multiband Effective Mass Theory Applied to Low Dimensional Nanostructures”, Commun. Comput. Phys., vol. 6, no. 4, pp. 699–729, Jun. 2009, Accessed: Dec. 05, 2025. [Online]. Available: https://www.global-sci.com/index.php/cicp/article/view/5661