@inproceedings{bridges2013:571, author = {Erd\'{e}ly, D\'{a}niel}, title = {Hexagons and Their Inner World}, pages = {571--572}, booktitle = {Proceedings of Bridges 2013: Mathematics, Music, Art, Architecture, Culture}, year = {2013}, editor = {Hart, George W. and Sarhangi, Reza}, isbn = {978-1-938664-06-9}, issn = {1099-6702}, publisher = {Tessellations Publishing}, address = {Phoenix, Arizona}, url = {http://archive.bridgesmathart.org/2013/bridges2013-571.html} }