W.  Hu, Bulusu, N., Chou, C. T., Jha, S., Taylor, A., and Tran, V. N., ?Design and evaluation of a hybrid sensor network for cane toad monitoring?, ACM Trans. Sen. Netw., vol. 5, pp. 1?28, 2009.

A. A.  Chek, Bogart, J. P., and Lougheed, S. C., ?Mating signal partitioning in multi-species assemblages: a null model test using frogs?, Ecology Letters, vol. 6, pp. 235?247, 2003.

M. J.  Ryan and Wilczynski, W., ?Evolution of intraspecific variation in the advertisement call of a cricket frog (Acris crepitans, Hylidae)?, Biological Journal of the Linnean Society, vol. 44, pp. 249?271, 1991.