@article{KJM_2021_45_5_a6,
     author = {Reinhardt Euler and Luis H. Gallardo and Olivier Rahavandrainy},
     title = {Eigenvalues of {Circulant} {Matrices} and a {Conjecture} of {Ryser}},
     journal = {Kragujevac Journal of Mathematics},
     pages = {751 },
     year = {2021},
     volume = {45},
     number = {5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KJM_2021_45_5_a6/}
}