@article{VM_2005_7_1_a7,
     author = {Rinus Roelofs},
     title = {Glide {Reflection} and other {Combined} {Transformations}},
     journal = {Visual Mathematics},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/VM_2005_7_1_a7/}
}