@article{CRMATH_2015__353_6_535_0,
     author = {L\'ena, Corentin},
     title = {Courant-sharp eigenvalues of a two-dimensional torus},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {535--539},
     year = {2015},
     publisher = {Elsevier},
     volume = {353},
     number = {6},
     doi = {10.1016/j.crma.2015.03.014},
     language = {en},
     url = {https://www.numdam.org/articles/10.1016/j.crma.2015.03.014/}
}