@article{10_4064_aa_49_1_107_112,
     author = {M. Chaimovich and G. Freimann and J. Sch\"onheim},
     title = {On exceptions to {Szegedy's} theorem},
     journal = {Acta Arithmetica},
     pages = {107--112},
     publisher = {mathdoc},
     volume = {49},
     number = {1},
     year = {1987},
     doi = {10.4064/aa-49-1-107-112},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-49-1-107-112/}
}