@article{VM_2006_8_2_a0,
     author = {Paulus Gerdes},
     title = {Symmetries of {Alternating} {Cycle} {Matrices}},
     journal = {Visual Mathematics},
     publisher = {mathdoc},
     volume = {8},
     number = {2},
     year = {2006},
     url = {http://geodesic.mathdoc.fr/item/VM_2006_8_2_a0/}
}