Sismondo E. Synchronous, Alternating, and Phase-Locked Stridulation by a Tropical Katydid. Science. 1990;249(4964):55 - 58. Available at: http://www.sciencemag.org/cgi/doi/10.1126/science.249.4964.55https://syndication.highwire.org/content/doi/10.1126/science.249.4964.55.