@article{JAC_2005__21_3_a4,
     author = {Ressayre, N.},
     title = {Balanced configurations of $2 n + 1$ plane vectors},
     journal = {Journal of Algebraic Combinatorics},
     pages = {281--287},
     publisher = {mathdoc},
     volume = {21},
     number = {3},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JAC_2005__21_3_a4/}
}