@article{JGG_2012_16_2_JGG_2012_16_2_a7,
     author = {M. Stavric and A. Wiltsche },
     title = {Three-Dimensional {Ornamental} {Structures} {Based} on the {Wallpaper} {Groups} in {Architecture}},
     journal = {Journal for geometry and graphics},
     pages = {211--221},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {2012},
     url = {http://geodesic.mathdoc.fr/item/JGG_2012_16_2_JGG_2012_16_2_a7/}
}