@inproceedings{bridges2011:68, author = {George Hart}, title = {Symmetric Stick Puzzles}, pages = {357--364}, booktitle = {Proceedings of Bridges 2011: Mathematics, Music, Art, Architecture, Culture}, year = {2011}, editor = {Reza Sarhangi and Carlo H. S\'{e}quin}, isbn = {978-0-9846042-6-5}, issn = {1099-6702}, publisher = {Tessellations Publishing} }