@article{JGG_2001_5_1_a2,
     author = {N. Ando and N. Yamahata and S. Masumi and M. Chatani},
     title = {Shape {Grammar} and {Form} {Properties} of {Architectural} {Figures}},
     journal = {Journal for geometry and graphics},
     pages = {023--034},
     publisher = {mathdoc},
     volume = {5},
     number = {1},
     year = {2001},
     url = {http://geodesic.mathdoc.fr/item/JGG_2001_5_1_a2/}
}