Citations refer to the original publication, not to a Scieee localized version.
Leyvraz, F., Frank Hoeflich, A., Lemus Casillas, R., & Andrés Martín, M. V. (1997). Accidental degeneracy in a simple quantum system: A new symmetry group for a particle in an impenetrable square-well potential. American Association of Physics Teachers. https://idus.us.es/items/b5206943-a2c6-4288-bc75-535895910cc6
Leyvraz, Francois, et al. Accidental degeneracy in a simple quantum system: A new symmetry group for a particle in an impenetrable square-well potential. American Association of Physics Teachers, 1997. https://idus.us.es/items/b5206943-a2c6-4288-bc75-535895910cc6.
Leyvraz, Francois, Alejandro Frank Hoeflich, Renato Lemus Casillas, and María Victoria Andrés Martín. Accidental degeneracy in a simple quantum system: A new symmetry group for a particle in an impenetrable square-well potential. American Association of Physics Teachers, 1997. https://idus.us.es/items/b5206943-a2c6-4288-bc75-535895910cc6.
Leyvraz, F. et al. (1997) Accidental degeneracy in a simple quantum system: A new symmetry group for a particle in an impenetrable square-well potential. American Association of Physics Teachers. Available at: https://idus.us.es/items/b5206943-a2c6-4288-bc75-535895910cc6.
F. Leyvraz, A. Frank Hoeflich, R. Lemus Casillas, and M. V. Andrés Martín, “Accidental degeneracy in a simple quantum system: A new symmetry group for a particle in an impenetrable square-well potential,” American Association of Physics Teachers, 1997. [Online]. Available: https://idus.us.es/items/b5206943-a2c6-4288-bc75-535895910cc6
@misc{leyvraz1997accidental,
author = {Leyvraz, Francois and Frank Hoeflich, Alejandro and Lemus Casillas, Renato and Andrés Martín, María Victoria},
title = {Accidental degeneracy in a simple quantum system: A new symmetry group for a particle in an impenetrable square-well potential},
year = {1997},
publisher = {American Association of Physics Teachers},
url = {https://idus.us.es/items/b5206943-a2c6-4288-bc75-535895910cc6}
}
The source metadata has no journal, volume or pages. Add them from the original publication if your citation needs them.