Spencer, K. A., Buchanan, K. L., Leitner, S., Goldsmith, A. R., & Catchpole, C. K. (2005). Parasites affect song complexity and neural development in a songbird. The Royal Society.

Spencer, Karen A., Katherine L. Buchanan, Stefan Leitner, Arthur R. Goldsmith, and Clive K. Catchpole. Parasites Affect Song Complexity and Neural Development in a Songbird. The Royal Society, 2005.

Spencer, Karen A., et al. Parasites Affect Song Complexity and Neural Development in a Songbird. The Royal Society, 2005.