Jia-Xing Li, Ya-Ni Cao, Ai-Guang Li. Design of emergency map symbol. In The 18th International Conference on Geoinformatics: GIScience in Change, Geoinformatics 2010, Peking University, Beijing, China, June, 18-20, 2010. pages 1-4, IEEE, 2010. [doi]
Abstract is missing.