@article{10_4064_cm130_1_4,
     author = {Kathryn E. Hare and L. Thomas Ramsey},
     title = {Exact {Kronecker} constants of {Hadamard} sets},
     journal = {Colloquium Mathematicum},
     pages = {39--49},
     publisher = {mathdoc},
     volume = {130},
     number = {1},
     year = {2013},
     doi = {10.4064/cm130-1-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm130-1-4/}
}